Question

(3) In a group of 60 seldiers have enough food for

20 days - How many soldiers should leave the group
so that the food is enough for 100 days ? Find it.​

Answer 1

30 Soldiers

Explanation:

Given:

1) No of soldiers=60

No of days=20

2) No of days=100

No of soldiers=?

No of soldiers to leave=?

Solution:

Let us use the cross multiplication method.

Let x be the no of soldiers.

No of days No of soldiers

1) 20 60

2) 100 x

by cross multiplying,

20x=100 x 60

20x=600

x=600/20

x=30 soldiers

Therefore, No of soldiers to leave =60-30=30 soldiers

Answer 2

48 soldiers

Explanation:

60 soldiers 20 days

x soldiers 100 days

60 x 20 = 1200 = 100x

Therefore x = 1200/100 = 12

60 - 12 = 48

Hope that helped!!! k