A sum becomes 4 times of itself in 8 years at compound interest. In how many years it becomes 8 times of itself at same rate of compound interest?

  1. 32 years
  2. 12 years
  3. 16 years
  4. can’t be determined

If there are 10 balls each of Red, blue and green color in a box, then what is the minimum number of balls that should be taken out of the box to ensure that 3 of them are safe color

  1. 23
  2. 22
  3. 7
  4. 12

If 8 men and 10 women take 3 and 4 days respectively to dig a 4*4*4 pit. How many days 6 men and 15 women combined will take to dig the same pit?

  1. 8.5 days
  2. 1.6 days
  3. 6 days
  4. 2.33 days