Question

ratio and proportion. answer the question correctly the answer will be marked brainlist. plss do it with steps​

Answer 1

2. Men. Time

420. 9 months

x. 7 months

As the number of workers is inversely to proportional time taken:

420×9=x ×7

= 420×9÷7= 540

:: Extra men needed: 540-420=120

3. No. of cattles= 20

1 more cattle added

so,no. of cattle=21

food last for 42 days

Let the food lasts for days when one cattle is added

A.T.Q

21+x=42

x=42/21

x=2

Food lasts for days when on cattle is added 42-2=40

The food will now lasts for 40 days.

Hope it helps you.