Question
3 men dig a hole in 10 days. How many days would it take
for 5 men to dig the same hole ?Solution
(M1 x D1)/W1 = (M2 x D2)/W2 (3 x 10)/1 = (5 x D)/1 D = 6 days
The ratio of length and breadth of a rectangular field is 5:9. If the total cost of surrounding it at the rate of Rs 7.50 per meter is Rs 4200, then fin...
If 5th term of an AP is 20 and 10th term is 45, find 25th term.
The sum of 6 consecutive odd numbers is 156. What will be the product of first number and the last number?
24, 29, 62, ?, 758, 3791
...The cost of an item is 'A'. A shopkeeper increases the price by 'x'%, then applies a discount of 'd'% on the increased price. Aft...
Present average age of A, B and C together is 44 years. Age of B is 12 Years hence from now will be 260% more than age of A, Four years ago from now whi...
The marks obtained by 15 students out of a maximum of 25 in a test are given as 13, 11, 16, 15, 18, 12, 13, 14, 10, 22, 21, 20, 17, and 24. Find the sum...
At a certain time in a park, the number of heads and the number of legs of monkeys and human visitors were counted, and it was found that there were 54 ...
The median of the following data will be ___
32,25,33,27,35,29,14,26 and 30.
Find the mean of the given data set:
7, 11, 9, 13, 15, 10