Question
The volume of water measured on a rectangular field 400m
200m is 8000 . Find the depth (amount) of rain that has fallen.Solution
Volume of water = Volume of the field with rainwater as height ⟹ 8000 = 400 × 200 × h ∴ h = 8000/(400 × 200) = 1/10 m = 10 cm
An integer with positive sign (+) is always greater than
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is
- In a class, the ratio of boys to girls present is 4:3. The number of girls who are absent is 21 which is 30% of the total number of students. If all boys a...
Find the number of factors of 80?
Find the remainder when the number (289n + 147) is divided by 17.
In a school, girls constitute 45% of the total strength of the school. Out of total number of students, 20% students were selected for annual sports com...
A, B and C hired a taxi for Rs. 880 and used it for 2, 4, 5 hours respectively. Hiring charges paid by B are:
Some pencils were distributed among (x + 2) students such that each student received 10 pencils. If there had been 5 students more, then pencils receive...
- What will be the number of factors of 1707552?
Three distinct prime numbers 'p', 'q', and 'r' satisfy (p < q < r). The sum of 'p' and 'q' is 20, and the sum of 'q' and 'r' is 30. Calculate the total ...