Question

A man stitches 40 clothes in 10 days working 20 hours a day, then in how many days the man stitch 120 clothes working 30 hours a day?

• A. 5
• B. 20
• C. 15
• D. 8

Answer 1

The correct option is B 20

To stich more clothes, more days have been required, so it is in direct proportion. The multiplying factor is 120/40.

If more hours spend on stitching , then less days will be required, so it is indirect proportion. The multiplying factor is 20/30.

x=10×(120/40)×(20/30)=20

Therefore, 20 days have been required.