Question 12

S can finish 50% of a work in a day. T can do 25% of the work in a day. Both of them together will finish the work in .... days.

Solution

"S can finish 50% of a work in a day" means S can complete work in $$\frac{1}{2}$$a day

"T can do 25% of the work in a day" means T can complete work in $$\frac{1}{4}$$ a day

both S and T can Complete the work in =$$\frac{1}{2}$$ + $$\frac{1}{4}$$ = $$\frac{3}{4}$$ a day

So they can complete the whole work in = $$\frac{4}{3}$$ days

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