SSC CGL Tier II 25 Oct 2015 Paper 1

Question : 26 of 100

Marks: +1, -0

If 90 men can do a certain job in 16 days, working 12 hours per day, then the part of that work which can be completed by 70 men in 24 days, working 8 hours per day is

$1/3$
$2/3$
$7/9$
$5/8$

Validate

Solution:

(3)

{ {M}_{1} {D}_{1} {T}_{1}}/{ {W}_{1}}= { {M}_{2} {D}_{2} {T}_{2}}/{ {W}_{2}}

⇒{90 ×16 × 12}/{1}= {70 × 24 × 8}/{W_{2}}

⇒{W}_{2}= {70× 24 ×8}/{90 × 16 × 12}= {7}/{9}

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