Question

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10. If 3 boys can do a piece of work in 2 days, then one boy can do it in ----- days. .
а) 9
Б) 6
c) 5
d) 4
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Answer 1

Answer- 6

3 boys work in 2 days

then one and half boy will complete work in 4

therefore one boy complete in 6 days

sorry I can't explain in proper manner