Question

There is a sufficient food for a group of 150 army man for 40 days. After 29 days, 75 army man leave the place. For how many days will the rest of the food last for the rest of the army man?

a.
32 days

b.
None

c.
25 days

d.
22 days

Answer 1

Answer:

22 days

Step-by-step explanation:

suppose 1 man consumes $ per day

then 150 men in 40 days will consume 150 x 40 x $

this 150 x 40 $ is the total food available

150x40x$ = ( food consumed by 150 people for 29 days) + ( food consumed by 75 people who stay for remaining no of days )

150x40x$ = 150x29x$ + 75 x numbers of days( answer) x $

solving you will get

answer=22

Answer 2

Answer:

after 29 days

number of army man (150-75)=75

rest of the foods=(40-29)=11 days

so, rest of the food last for 11×150/75 days=22 days