A girls hostel had a ratio of 120 girl students for 32 days. After 7 days, 20 girls left the hostel. How long will the remaining ration last?
Answer:
30 days
Step-by-step explanation:
120students= 32 days
No. of days= 32-7
= 25 days
1 student= 25×120
No. of students= 120-20
= 100
100 students= 25×120/100
= 30 days
Explain this line in this question and give reason :
1 student= 25×120
Answers
Answered by
1
Answer:
oookkkkkkhhhhhhhhhhhhhhhh. ok that's tooo easy
Answered by
1
Answer:
Let one person finish x amount of food in 1 day.
Then the total amount of food in the start =x.32×120=3840x
120 persons ate food for 7 days
Then the amount of food consumed in 7 days
=120.x.7=
Then the amount of food remaining=3840x-840x
=3000x
This amount of food will be consumed by 100 persons. Let it be n days. Then
100.x.n=3000x
n=3000x/100x=30 days Ans
Similar questions