Ticket rate for the science exhibition is 10 rupees for a child and 26 rupees for an adult. 740 rupees was got from 50persons. How many children ámong them?

When a person calculated his expense from Sunday to Thursday, he found the average expenditure to be 400 rupees per day. Inclụding Friday, the average Increased to 430 rupees per day. How much did he spent on Friday? Including Saturday, the average decreased to 390 rupees per day. How much did his spend on Saturday?

A man invested 10000 rupees, split into two schemes, at annual rates of interest 8% and 9% . After one year he got 875 rupees as interest from both. How. much did he invest in each?

Shyam bought 5 two hundred page notebooks and 3 hundred page notebooks from the school store. The price. of a two hundred page book is 9 rupees and the price of a hundred page book is 4 rupees. How much did Shyam spent? Use any letters you like for the number of two hundred page note books bought from this store, the number of hundred page books bought and the total amount of money spent by a student, and write the relation connecting them.

Unni had 500 rupees with him and gave 100 rupees to Appu. Sometime later, Abu borrowed 50 rupees from him. Now how much money does Ủnni have?

There are 50 children ina class.Thirty of them are girls . There are 40 children in another class. 25 of them are boys.One student is taken from each class at random. What is the number of outcomes ? How many out comes contain both boys. How many outcomes contain both girls. How many out comes have one boy and one girl.

40 children of class VI donated 50 rupees on average to the Mutual Aid Fund. 30 children of class V donated 800 rupees in all. If we consider both classes together, how much did each donate on average?

A person took out a Ioan of 16,000 rupees from a bank which charges interest compounded quarterly. The annuál rate of interest is 10 % . How much should he pay back after 9 months to settle the loan?

Dileep and Manoj deposited the same amount under differerit schemes giving 10 % interest. Dileep gets only simple interest, while Manoj gets interest compounded annually. After 2 years, Manoj had 50 rupees more than Dileep. How much money did each deposit?

Dileep took out a loan of 36000 rupees from a bank, which charges 10 % interest. He decided to pay back the total amount including Interest for 2 years, in 24 monthly installments. How much should he pay every month?

How many years it would take to spend Avogadro's number of rupees at the rate 10 lakhs per second?