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subhanga from dps numaligarh, golaghat

Subject :IMO Class : Class 8

12 men can do a piece of work in 30 days. How many more men will be required to do it in 20 days?

A8
B6
C10
D7

Ans 1:

Jessica from Delhi Public School Mysore, Mysore

B. 6

Ms. Anoushka Shetty from Lilavatibai Podar High School, Mumbai

Since it is in inverse proportion, 12:x::30:20 12×30=20x 360÷20=x x=18 More men= 18-12 =6 men more required

Nikhil Raj from JNV japla, Japla palamu

VIDHAN KUMAR PRAJAPAT from MAGADH INTERNATIONAL SCHOOL, TEKARI (GAYA), GAYA

B. 6