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

The Winston Pool League played a total of 90 balls of which the ladies sank 30%.

Shawn invested one half of his savings in a bond that paid simple interest for 2 years and received $650 as interest.

A palindrome is a number that reads the same forward and backward, such as 787.

Calculate the ratio between x and y if 30% of x equal to 50% of y?

Let p be a prime number. If N = 8p, how many distinct even divisors does N have?

A boy is travelling from his home to school at 12 km/hr and reached 7 min late.

What is the lowest positive integer that is divisible by each of the integers 1 through 8 inclusive?

Find the odd man out 6, 26, 106, 426, 1706, 4325, 27304

The pilot of a small aircraft with a 40-gallon fuel tank wants to fly to Cleveland, which is 520 miles away.

A boat can travel with a speed of 22 km/hr in still water.

A bag of n peanuts can be divided into 9 smaller bags with 6 peanuts left over.

The value of a laptop depreciates at the rate of 30% every year.

If x = -3/8 and y = -1/2, what is the value of the expression -2x – y^2?

There are 8 books in a shelf that consist of 1 paperback books and 7 hardback books.

What should be the minimun mark up percentage such that after giving the discount of 200/3% ., there will neither a loss nor a profit ?

If a population of women in a town is 60% of men .

In the set of positive integers from 1 to 100, what is the sum of all the odd multiples of 5?

What is the unit digit in (632)^179×(615)^316×(341)^476

If the simple interest on a certain sum of money after 3 1⁄8 years is 1⁄4 of the principal, what is the rate of interest per annum?

The difference between the place values of 6 and 1 in the number 527631 is

A train running at a speed of 36 kmph crosses an electric pole in 12 seconds.

The ratio of the incomes of Rajan and Balan is 7:6 and the ratio of their expenditure is 6:5.

A number is increased by 40 % and then decreased by 40 %.

An amount of money is to be divided between P, Q and R in the ratio of 3:7:12.