Elementary Mathematics Questions and Answers

a and b are two whole numbers and c is their HCF, then the LCM of those two numbers is

Mohan invested Rs. 100,000 in a garment business. After few months, Sohan joined him with Rs. 40000. At the end of the year, the total profit was divided between them in ratio 3:1. After how many months did Sohan join the business?

Two-person X and Y invested their money in the ratio of 30:28 and the ratio of their respective profits at the end of a year is 10:4. If Y invested the money for 3 months, then for how much time (in months) x invested his money?

A invested 125% as much money as B. C invested 80% as much money as B. The total of all the three is 61,000. How much did C invest?

The price of JK magazine is ₹ 90. There is a 30 % discount on becoming a customer of 45 magazines. While another discount of 25 % is also given to the customer of 26 magazines. Find the difference of the price of a magazine for a customer of 45 magazines and a customer of 26 magazines. 

The marked price of a Robot is ₹ 18000. By selling it at a discount of 20%, the loss is 4%. Find the cost price of the Robot.

A watch is sold on 20% discount and there is 15% extra discount on cash payment. If Selena purchased it in Rs. 2380 cash payment, then what was the marked price of the watch?

The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the number is:

A number divided by 68 gives the quotient 269 and remainder zero. If the same number is divided by 67, the remainder is:

When a number is divided by 357 the remainder is 39. If that number is divided by 17, the remainder will be: