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Question
A contractor estimates that 3 persons could rewire Jasminders house in 4 days. If he uses 4 persons instead of three, how long should they take to complete the job?
A contractor estimates that 3 persons could rewire Jasminders house in 4 days. If he uses 4 persons instead of three, how long should they take to complete the job?
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Solution
The correct option is B 3 days
The given example is of inverse proportionality
I II
No. of persons 3 4
No. of days 4 x
By inverse
proportionality,
3×4=4×x
x=3 days
Answer
is option B
The given example is of inverse proportionality
I II
No. of persons 3 4
No. of days 4 x
By inverse proportionality,
3×4=4×x
x=3 days
Answer is option B
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