A constructor estimates that 3 people can paint Mr khans house in 4 days If he uses 4 people instead

c. 3

3 people requires 4 days.
As the people are increased to 4, i.e. 3*(4/3)=4, so work will be reduced to (3/4)*4=3 days
9 years agoHelpfull: Yes(1) No(1)
m1 * d1 = m2 * d2
3 *4 = 4 * x
where x = no. of days taken by 4 men to paint

therefore , x=3
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as the people increased to 4 then 4*(3/4)=3 so 3 days
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3 bcz 3/4*4
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XY=X1Y1=>3*4=4x
x=3
so, 3days
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if one people can work one work per day
3 people work 4days=12 units;
4 people work 3 days=12 units
so ans is option c.3
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total man work days =3x4=12 man-days
is there are 4 people
then workdays will remain same=12
so no of days to complete task=total man-days/no of people=12/4=3 days
8 years agoHelpfull: Yes(0) No(0)
answer is c.) 3
solution is:-
by chain rule:-
3 people 4 days, 4 people x days
4 people: 3 people:: 4 days: xdays
4/3=4/x
gives x=3 days answer
second way is:-
direct multiplication of values,
3 *4/4=3 answer
7 years agoHelpfull: Yes(0) No(0)
Answer is 3
7 years agoHelpfull: Yes(0) No(0)

A constructor estimates that 3 people can paint Mr khans house in 4 days. If he uses 4 people instead of 3,how long will they take to complete the job?

a.4
b.2
c.3
d.5