In a hostel, 75 students had food provision for 24 days. a) If 15 students leave the hostel, for how many days would the food provision last? b) If 45 more students join the hostel, for how many days would the food provision last?
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In a hostel, 75 students had food provision for 24 days.
75 men x 24 days = 1800 (total food)
This is your standard equation for total food.
a) If 15 students leave the hostel,
Student left = 15
Remaining Students = 75 - 15 = 60
Move to the standard formula,
60 students x No. of days = 1800 (total food)
60 x no. Of days = 1800
No. Of days = 1800/60
= 30
b) If 45 more students join the hostel,
Student joined = 45
Total Students = 75 + 45 = 120
Move to the standard formula,
120 students x No. of days = 1800 (total food)
120 x no. Of days = 1800
No. Of days = 1800/120
= 15
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