Hey koushik i think it's 22.5... Ami ryt???
ya it's right rocky raj
If A completes a work in 1 day, B completes the
same work in 3 days
Hence, if the difference is 2 days, B can complete
the work in 3 days
=> if the difference is 60 days, B can complete the
work in 90 days
=> Amount of work B can do in 1 day= 1/90
Amount of work A can do in 1 day = 3 × (1/90) =
1/30
Amount of work A and B can together do in 1 day
= 1/90 + 1/30 = 4/90 = 2/45
=> A and B together can do the work in 45/2 days
= 22 ½ days
Question no 4: A man is 24 years older than his son. In two
years, his age will be twice the age of his son.
What is the present age of his son?
the answer may be 22 i think....