A can read a book in x minutes . What part of the boon can he read in k minutes?

If a man cuts the grass of a lawn in T minutes ,what part of the lawn can be he cut in 30 minutes ?

Sushant reads 1/3 part of a book in 1 hour. How much part of the book will he read in 2(1/5) hours?

Sushant reads 1/3 part of a book in 1 hour. How much part of the book will he read in 2 1/5 hours?

Ravish reads 1/3 part of a book in 1 hour. How much part of the book will he read in 2 1/5 hours?

Ravish reads 1/3 part of a book in 1 hour. How much part of the book will he read in 2 1/5 hours?

Sushant reads (1)/(3) part of a book in 1 hour.How much part of the book will he read in 2((1)/(5)) hours?

Narendra reads of 1/4 a short novel in 1 hour. What part of the book will he have read in 2"" 1/2 hours?

A tap can fill a tank in 25 minutes and another can empty it in 50 minutes. Find in how many minutes the tank will be filled up or emptied?

A pipe can fill a tank in 10 minutes while another pipe can empty it in 12 minutes. If the pipes are opened alternately each for 1 minute, beginning with the first pipe. the tank will be full after (in minutes):