Quantitative Aptitude Test 119

Test # 119


1.
A can do a piece of work in 30 days while B alone can do it in 40 days. In how many days can A and B working together do it ?

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Quantitative Aptitude
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Idiom of the Day

run in (somewhere)
to make a brief visit or stop somewhere
I ran in to see my sister at her office before I left for the weekend.

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