Arithmetic Reasoning - General Questions

A clock takes 54 seconds to strike 10. How long will it take to strike 13?

A teacher has 183 chocolates. If she gives 11 chocolates to each student, she is 4 short. How many students are there?

A boy buys 10 notebooks at Rs. 9 each and pays with Rs. 100. How much change does he get?

A boy buys 6 notebooks at Rs. 14 each and pays with Rs. 100. How much change does he get?

A clock takes 54 seconds to strike 10. How long will it take to strike 16?