1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# If x men can do a piece of work in 5 days, then find the number of days that 20 men will take for the same work.

A
x6 days
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
B
2x3 days
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
C
x5 days
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
D
x4 days
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

## The correct option is D x4 daysGiven, x men can do a piece of work in 5 days. We know that if the number of men increase, then the number of days taken to finish the piece of work will be less. So, Number of men(p)∝1Number of days(q) ∴p1p2 = q2q1 Given, p1 = x men p2 = 20 men q1 = 5 days and q2=No. of days taken by 20 men ⇒x20 = q25 ⇒q2 = x×520 ⇒d2 = x4 days

Suggest Corrections
2
Join BYJU'S Learning Program
Related Videos
Inverse Proportions
MATHEMATICS
Watch in App
Explore more
Join BYJU'S Learning Program