1.

if 13 men can do a pieceof work in 140 days . in how many days 28 men will do it . how many men will be requiredto completethe work in 35 days in direct or inverse variation form

Answer»

If 13 men can do WORK in 140 days,
then 28 men will do it in,
by work FORMULA :m1×d1=m2×d2
13×140=28×d2
d2=13×140/28
d2=13×5=65days
same,
m1×d1=m2×d2
13×140=m2×35
m2=13×140/35
m2=13×4=52men


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