Question

If 60 engineers of 120 doctors or 100 teachers can finish a
work in 360 days then in how many days will 10 engineers,
40 doctors and 50 teachers working together will complete
the same work?
A. 360
B. 320
C. 400
D. 440

Answer 1

Correct Answer - (a)
`60E= 120 D = 100T= 1 ` unit can finish a work in 360
days
Also `10E+40D+50T= 1/6 + 1/3 + 1/2 unit = 1 unit`
Therefore 10 engineers, 40 doctors and 50 teachter
working together will complete the same work in same
time i.e. 360 days.