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प्रश्न
A is thrice as fast as B. If B can do a piece of work in 24 days then, find the number of days they will take to complete the work together
उत्तर
If B does the work in 3 days, A will do it in 1 day.
B complete the work in 24 days.
∴ A complete the same work in `24/3` = 8 days.
∴ (A + B) complete the work in `"ab"/("a" + "b")` days.
= `(24 xx 8)/(24 + 8)` days
=`(24 xx 8)/32` days
= 6 days
`(24 xx 8)/4`
They together complete the work in 6 days.
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