Some guavas are packed into a box in stacks. Each stack has the same number of guavas in each row as the number of rows. The number of stacks is also the same as the number of rows. If there are 62 stacks of guavas in the box, what is the total number of guavas in the box?

Tap A can fill a tank in 10 hours, while tap B can fill the same tank in 15 hours. If both taps are open together, how long will it take to fill an empty tank?

The sum of the digits of a ^@2^@-digit number is ^@17^@. The number obtained by interchanging its digits is ^@9^@ less than the original number. Find the original number.

The given figure ^@ABCDE^@ is a pentagonal park in which ^@EA = ED, AB = BC = CD = DA = 25 \space m^@ and its total height is ^@43 \space m.^@ Find the area of the park.

Find the compound interest of ^@ Dhs30000 ^@ after ^@ 2 ^@ years, compounded annually. The rate of interest is ^@ 7 \% ^@ per annum during the first year and ^@ 13 \% ^@ per annum during the second year.

From among a group of 4 men, 5 women and 6 children, 3 individuals are selected randomly. What is the probability that exactly 1 among the chosen are children?

You are given a number N with the property that every next digit of N is greater than the previous digit (so second digit from the left is greater than the first digit, and third digit is greater than the second and so on). Now multiply N by 9. What is the sum of the digits of the resulting number?