Question

A total of 280 workers were deployed to unload the ship’s cargo within 10 days.

After a 3 day, only ¼ of all the items were removed. So how many more workers were hired

To complete the work on time????​

Answer 1

Answer:

Step by step explanation-

To finish a work in 3 days 250 labourers are required

To finish it in 7 days ( more time) less labourers required

Multiplying fraction is 3/7(less)

To finish 1/4 work 250 labourers are required

To finish 3/4 work ( more work) more labourers are required.

Multiplying fraction is (3/4)/(1/4) ( more)

Answer=250×3/7×3/4×4/1=250×9/7=2250/7=321.4~321 labourers.

Final answer=321–250=71 more labourers required.