Mathematics quiz on Profit, loss and Ages (02-08-2020)

Ages of Rahul, Rohan & Ram are 10, 6 and 13 respectively. The sum of their ages will give Rajeev’s age. Suma is 5 years older than Rajeev. What will be the age of Suma after 3 years?

Anil is 6 years older than Akhil. Akhil is 36 months younger than Vijay. If Vijay’s age is taken as y, then age of Anil is:

The ratio of the present ages of Mahima and her Daughter is 10:3 respectively. 8 years ago, the ratio of their ages was 8:1. What will be the sum of ages of Mahima and her daughter 6 years from now?

The ratio of the present ages of Anjali and Mohit is 7:5 respectively and the sum of their ages is 48 years. After 12 years, Anjali's age will be what percentage of Mohit's age?

Neha's age is five times of Nisha's age. After 8 years, Neha's age will be three times of Nisha's age. What is the average of present ages of Nisha and Neha?

Mr. Ashwani sold a bus for Rs. 510 with a loss of 15%. At what price should the bus be sold to get a profit of 15%?

The cash difference between the selling price of an article at a profit of 8% and 10% is Rs. 3. The ratio of selling prices is:

Mr. Kiran buys a toy for Rs. 40 and sells it for Rs. 45 . Find the gain percentage.

A shopkeeper cheats to the extent of 21% while buying and selling fruits, by using tampered weights. His total gain (in percentage) is:

A milkman pays Rs 8 per litre of milk. He then adds water in it and sells the mixture at Rs 10 per litre, hence making 50% profit. What will be the proportion of milk to water received by the customer?