If 20 men can build a wall 112 meters long in 6 days, what length of a similar wall can be built by 25 men in 3 days
The average of 5 nos. is 120. Later it was found that instead of entering correct value 15, data is wrongly entered as 5. Find the new correct average
A sum of money lent out at simple interest amounts to INR 720 after 2 years and to INR 1020 after a further period of 5 years. Find the interest rate %
The population of a village has a constant growth of 6.25% every year. If its present population is 82536 what was the population two years ago
If a2+b = 45 and ab = 18 find 1/a+1/b
A rectangular hall 39 m 10 m long and 35 m 70 cm broad is to be paved with square tiles. Find the largest tile which will exactly fit and the number required.