The teacher taught `3/5` of the book, Vivek revised `1/5` more on his own. How much does he still have to revise?

By how much does 5 exceed -5 ?

Sahil covers 5 km in 50 minutes. How much distance will he cover in 150 minutes ?

A boy travels with a speed of 10 ms^(-1) for 30 minute. How much distance does he travel ?

A boy travels with an average speed of 10 ms^(-1) for 20 min. How much distance does he travel ?

Preeti selects a dress material costing Rs. 35(1)/(2) per metre. She needs 5 m of the material. How much does she have to pay?

A bookseller sells all his books at a profit of 10%. If he buys a book from the distributor at Rs 200, how much does he sell it for?

Aslam can walk 5""2/5 km in one hour. How much distance will he cover in 3""1/4 hours ?

A father distributed his total wealth to his two sons. The elder son recived 3/5 of the amount. The younger son received $30,000. How much wealth did the father have ?

A boy standing on a stationary lift (open from above) throws a ball upwards with the maximum initial speed he can, equal to 49 ms^(-1) . How much time does the ball take to return to his hands? If the lift starts moving up with a uniform speed of 5 ms^(-1) and the boy again throws the ball up with the maximum speed he can, how long does the ball take to return to his hands?

A motorbike travels 220 km in 5 litres of petrol. How much distance will it cover in 1.5 litres of petrol?