If 18 men can eat 20 kg of rice in 3 days how long with 6 men take to eat 40 kg of rice?

If 18 men can eat 20 kg of rice in 3 days how long with 6 men take to eat 40 kg of rice?

Explanation

Solution-1

6 men 3 times as long to eat 20 that is equals 9 days and multiply that number by 2

Answer: 18 days

 

Solution-2

20/18=1.11 kg per day for 18 men

1.11/3=.37037 each man each day

 

40/6=6.67 kg per day for 6 men

6.67/x=.37037

x = 18 days