LIC AAO Model Paper 7

Question : 38 of 160

Marks: +1, -0

9 Men working for 7 hours a day cam complete a piece of work in 15 days. In how many days can 6 men working for 9 hours a day, complete the same piece of work ?

17 $1/2$ days
16 $3/4$ days
16 days
15 $3/4$ days
None of these

Validate

Solution:

\table \Men , \Hours\\day , \Days;9,7,15;6,9,x

Where x= number of days
∴

\table 6:9;9:7 \}

: : 15 : x
⇒ 6 x 9 x x= 9 x 7 x 15
⇒ x =

{9×7×15}/{6×9}

{35}/2

= 17

1/2

days

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