Q. 24.0( 4 Votes )

Two boys can fini

Answer :

If two boys work together they can finish a work in 10 days

Let the two boys be x & y

x & y’s 1-day work =

x + y = ..eq (1)

first boy (x) can do it in 15 days

x’s 1-day work =

x =

substituting the value of x in eq(1)

x + y =

+ y =

y =

y’s 1-day work =

so, second boy (y) can do a work in 30 days

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