Latest IBPS Aptitude Question SOLUTION: if 8 men or 17 boys can do a piece of work in 26 days, how many days will it take for 4 men and 24 boys to complete a piece of work 50 x 0.9 times great?

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(#M40154119) IBPS Numerical Ability question Time And Work Keep an EYE

if 8 men or 17 boys can do a piece of work in 26 days, how many days will it take for 4 men and 24 boys to complete a piece of work 50 x 0.9 times great?

Asked In IBPS Aarti (9 years ago)

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Read Solution (3) :

Amrutha  (9 years ago)

shortcut:: if x men or y women can do a piece of work in t days, then (p men + q women) can do the same work in t/(p/x+q/y) days.
here t=26, p=4, q=24, x=8, y=17
so 26/(4/8+24/17)
=>(26*34)/65
Now ,
50*0.9 times great they can do it in = (26*34*9*50)/(65*10)
=612 days

Is this solution Helpfull? Yes (10) | No (3)  

vinay kumar  (9 years ago)

(17*26)/1=(17/2+24)x)50×.9
X=612

Is this solution Helpfull? Yes (1) | No (1)  

YANAMALA RAMESH  (8 years ago)

r+h=16
and surface area=2*(pie)*r(h+r)=704 (given)
=2*(22/7)*r*(16)=704 (r+h=16 given)
= r =(352/16)*(7/22)
= r =7
r+h=16 => h=16-7=9 =>h=9
Volume=(pie) *(r^2)*h
=22/7 * 7*7 *9
=22*7*9
=1386 ans

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