Ramu finishes 1/3 part of a work in 1 hour. How much will be finished in 2 1/5 hours ?

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GIVEN : 1 hour 1/3 part of work then 21/5 hours = ?

--> This problem can be solved using unitary method

--> In 1 hour he completed 1/3 part of work
--> So in 21/5 hours he completes ?

--> He completes 21/5*1/3 part of work
= 7/5 part of work
= 1 1/5 part of work

Answer: he completed 1 1/5 part of the work in 21/5 hours.