Q&Answers: Math/Chemistry/Physics Problems + Solutions

Four cups of milk are to be poured into a 3-cup bottle and a 4-cup bottle.

The average of first four prime numbers greater than 10 is?

How many words with or without meaning, can be formed by using all the letters of the word, DELHI using each letter exactly once?

The length of the bridge, which a train 180 metres long and travelling at 45 km/hr can cross in 30 seconds, is?

Find the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 17 cm

Some part of the 50% solution of acid was replaced with the equal amount of 30% solution of acid.

What will come in place of the x in the following Number series?

In a car wheel, two spokes cover 15 degree.

What is the perimeter of a triangle with sides 5 and 4 that has the maximum possible area?

A palindrome is a number that reads the same forward and backward, such as 343.

In a museum, the entrance ticket costs Rs.

If, 3 years ago, Jamie was half as old as he is now, how old will he be in x years?

Before a salary increase, the weekly salary of a worker for 42 hours in a week was as much as the worker is paid now for 35 hours of work in a week.

Tom reads at an average rate of 30 pages per hour, while Jan reads at an average rate of 39 pages per hour.

m is a positive integer. m! is ending with k zeros, (m+2)!

In how many ways can the letters of the word "MARS" be arranged?

A firm has 2 senior partners and 5 junior partners.

The average of 10 consecutive integers is 11.

Calculate f(3), given that f(x) = x3 + f0(-1)x2 + f00(1)x + f0(-1)f(-1).

A man can row upstream at 4kmph and downstream at 10 kmph.

8900 ÷ 6 ÷ 4 = ?

The difference of the areas of two squares drawn on two line segments in 32 sq. cm.

A grocer has a sale of Rs. 4000, Rs.

What least number should be subtracted from 642 so that the remainder when divided by 5, 7, and 9 will leave in each case the same remainder 4 ?