10second Questions (NOW WITH 150+ QUESTIONS!)
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
119. Divide a sum of $832 between A and B in the ratio 1/3:1/5.
120. I paid $27.20 as Sales Tax on the sale of a wristwatch worth $340. What is the rate of the Sales Tax?
120. I paid $27.20 as Sales Tax on the sale of a wristwatch worth $340. What is the rate of the Sales Tax?
Foxide Brainiac
 Number of posts : 180
Registration date : 20080412
Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
121. Find the sum of the first 200 terms in the series
1, 5, 9, 13, ................
122. What is the value of
11³+12³+13³+14³+...................19³+20³?
1, 5, 9, 13, ................
122. What is the value of
11³+12³+13³+14³+...................19³+20³?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
123. What is the value of;
[(cot41)/(sec20)]*[(csc70)/(tan49)]
[(cot41)/(sec20)]*[(csc70)/(tan49)]
Foxide Brainiac
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
124. A person travels 2 miles from the starting poing, turns left and travels 3 miles, then turns left again and travels 6 miles. How far is he from the starting point?
125. 1/3:1/4::20x:?
125. 1/3:1/4::20x:?
Foxide Brainiac
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
126. The slant height of a cone is 26 cm and the diameter of the base is 20 cm. What is its vertical height?
127. What is the value of (2 tan30°)/(1+tan²30°) ?
127. What is the value of (2 tan30°)/(1+tan²30°) ?
Foxide Brainiac
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
128. How many twin Primes exist between 1 and 100?
Note: 1 is neither prime nor nonprime; 2 and 3 are not twinprimes.
129. How many years does the farthest planet in the Solar System take to go around the Sun once?
130. How many leap years were there in the twentieth century?
Note: 1 is neither prime nor nonprime; 2 and 3 are not twinprimes.
129. How many years does the farthest planet in the Solar System take to go around the Sun once?
130. How many leap years were there in the twentieth century?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
131. The sum of double of a natural number and three
times another natural number is less than 24. If the first natural
number is less than or equal to eight, then what is the highest value of the second natural number?
132. The boys and girls in a school are in the ratio 3 : 7.
25% of the boys and 20% of the girls are scholarship holders.
What per cent of the total students do not get scholarships?
133. Stephen is 7 times as old as his son. 10 years hence,
he would be 3 times as old as his son. What are their present
ages (in years)?
times another natural number is less than 24. If the first natural
number is less than or equal to eight, then what is the highest value of the second natural number?
132. The boys and girls in a school are in the ratio 3 : 7.
25% of the boys and 20% of the girls are scholarship holders.
What per cent of the total students do not get scholarships?
133. Stephen is 7 times as old as his son. 10 years hence,
he would be 3 times as old as his son. What are their present
ages (in years)?
Foxide Brainiac
 Number of posts : 180
Registration date : 20080412
Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
134. In how many ways can we arrange 6 books on
different subjects, in a shelf?
135. The average of 4 consecutive even numbers is 9. Find the first number.
136. A certain sum of money doubles in 10 years at simple
interest. What is the rate of interest?
different subjects, in a shelf?
135. The average of 4 consecutive even numbers is 9. Find the first number.
136. A certain sum of money doubles in 10 years at simple
interest. What is the rate of interest?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
137. 2F7 in Hexadecimal is ________ in Decimal.
138. How is 65536 in decimal expressed in Hexadecimal?
138. How is 65536 in decimal expressed in Hexadecimal?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
139. If 1000^n = 1 centillion, what is n?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
140. Which of the four is the greatest?
7/22, 11/30, 12/31 or 4/11?
7/22, 11/30, 12/31 or 4/11?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
141. How many degrees is a radian approximately?
142. If 3tanx=4, what is the value of;
(sinxcosx)/(sinx+cosx)?
142. If 3tanx=4, what is the value of;
(sinxcosx)/(sinx+cosx)?
Foxide Brainiac
 Number of posts : 180
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remenant Admin
 Number of posts : 451
Age : 27
Location : Essex, UK
PSN : remenant
Registration date : 20080330
Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
remenant wrote:#4 = 3 stops
#18 = 1 terrabite
Excellent, remenant! Answers to #4 and #18 are both correct!
144. How many perfect powers exist between 1 and 1000? (perfect squares, perfect cubes, perfect fourth powers, etc.)
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
145. How many cubic inches make a cubic foot?
146. How many square yards make a square mile?
146. How many square yards make a square mile?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
147. What would be the successive sum of all the digits (that is, the sum of the repeatedly, until you get a single digit) of 343^1203?
148. What digit would 8^614 end in?
148. What digit would 8^614 end in?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
149. What is the length of the longest rod that can be placed inside a room 10m long, 10m wide and 10m high?
150. What is the probability of getting two black kings when two cards are drawn at random from a well shuffled pack of 52 cards, without replacement?
150. What is the probability of getting two black kings when two cards are drawn at random from a well shuffled pack of 52 cards, without replacement?
Foxide Brainiac
 Number of posts : 180
Registration date : 20080412
Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
151. An equilateral triangle is formed by joining the
middle points of the sides of a given equilateral triangle. A
third equilateral triangle is formed inside the second
equilateral triangle in the same way. If the process continues
indefinitely, then what is the sum of areas of all such triangles when
the side of the first triangle is 16 cm is?
152. What is the sum of first 100 terms which are
common to both the progressions
17, 21, 25, ... and 16, 21, 26, ....?
middle points of the sides of a given equilateral triangle. A
third equilateral triangle is formed inside the second
equilateral triangle in the same way. If the process continues
indefinitely, then what is the sum of areas of all such triangles when
the side of the first triangle is 16 cm is?
152. What is the sum of first 100 terms which are
common to both the progressions
17, 21, 25, ... and 16, 21, 26, ....?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
153. If both 11² and 33 are factors of the number a x 43 x 6² x 13^11, then what is the smallest possible value for a?
154. When a number is divided by 36, it leaves a remainder of 19. What will be the remainder when the number is divided by 12?
154. When a number is divided by 36, it leaves a remainder of 19. What will be the remainder when the number is divided by 12?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
155. If 20 men or 24 women or 40 boys can do a job in 12 days working for 8 hours a day, how many men working with 6 women and 2 boys take to do a job four times as big working for 5 hours a day for 12 days?
156. Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds?
156. Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
157. The time in a clock is 20 minute past 2. Find the angle between the hands of the clock.
158. At how many points between 10 O'clock and 11 O'clock are the minute hand and hour hand of a clock at an angle of 30 degrees to each other?
158. At how many points between 10 O'clock and 11 O'clock are the minute hand and hour hand of a clock at an angle of 30 degrees to each other?
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
159. Which is the samllest number which leaves a remainder of 1 when divided by 2, 4, 6, 8, 10, and 12?
160. Which is the number between 1 and 100 which has the greatest number of distinct prime factors?
160. Which is the number between 1 and 100 which has the greatest number of distinct prime factors?
Foxide Brainiac
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
161. No perfect tenth power or twentieth power of a natural number contains 6 digits. True of False?
162. How is 3628800 an important number to mathematicians?
162. How is 3628800 an important number to mathematicians?
Foxide Brainiac
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
163. A rectangular block of ice measures 40 cm by 25 cm by 16 cm. Calculate its mass in kilograms if 1 cubic centimetre weighs 0.9 grams.
Foxide Brainiac
 Number of posts : 180
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Re: 10second Questions (NOW WITH 150+ QUESTIONS!)
164. What is the value of x if x% of 24 is 64?
165. 3/8 as percent is_______________.
166. An ore contains 8% of Copper. How many kilograms of the ore is required to get 68 kilograms of copper?
165. 3/8 as percent is_______________.
166. An ore contains 8% of Copper. How many kilograms of the ore is required to get 68 kilograms of copper?
Foxide Brainiac
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