A rectangular piece of paper 11 cm × 4 cm is folded without overlapping to make a cylinder of height 4 cm. Find the volume of the cylinder.
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Answer:
A contractor estimates that 3 persons could rewire Jasminder’s house
in 4 days. If, he uses 4 persons instead of three, how long should they
take to complete the job?
Solution:
No of person (x) 3 (x1) 4 (x2)
No of days (y) 4 (y1) y2
When the no of persons increases, the number of days will get decreased.
Hence they vary inversely.
Using the formula x1 y1 = x2 y2
3 × 4 = 4 × y2
y2 =
3 ×4
4
= 3
∴ It will take 3 days to complete the job.
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its your answer.you can see in the image i am attached it...hope this will help you sir..
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