Rohit can distribute all morning newspaper in 32/9 hours but with the assistance of his brother, the newspaper were distributed in 32/15 hours. In how many hours, his brother alone can distribute all morning newspaper?
1). 16/3 hours
2). 10/3 hours
3). 43/10 hours
4). 57/10 hours
Let his brother can distribute all newspaper in x hours, in one hour he can distribute 1/x of all newspaper
? in one hour Rohit can distribute 9/32 of all newspapers
∴ in one hour Rohit and his brother together can distribute 9/32 + 1/x of all newspaper.
15/32 = 9/32 + 1/x
x = 32/6 = 16/3 hoursLet his brother can distribute all newspaper in x hours, in one hour he can distribute 1/x of all newspaper
? in one hour Rohit can distribute 9/32 of all newspapers
∴ in one hour Rohit and his brother together can distribute 9/32 + 1/x of all newspaper.
15/32 = 9/32 + 1/x
x = 32/6 = 16/3 hours