100 persons had food provision for 24 days. If 20 persons left the place, the provision will last for
(a) 30 days
(b) 96/5 days
(c)120 days
(d) 40 days
Solution:
Food provisions for 100 people were there to last for 24 days. If 20 people left then 80 people will be left. Thus persons and days are inversely proportional. The number of days the provisions will last are calculated as:
No. of Persons No. of Days
100 24
80 x = ?
If 20 people left it implies that provisions will last for a longer time. Therefore the number days the provision will last are:
x = 24 × (100/80) = 30 days
✦ Try This: 100 persons had food provision for 24 days. If 20 persons more arrive at the place, the provision will last for (a) 30 days, (b) 96/5 days, (c)120 days, (d) 40 days
Food provisions for 100 people were there to last for 24 days. If 20 people join then 120 people will be there. The number of days the provisions will last are calculated as:
No. of Persons No. of Days
100 24
120 x = ?
If 20 people more arrive left it implies that provisions will last for a shorter time. Therefore the number days the provision will last are:
x = 24 × (100/120) = 20 days
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 13
NCERT Exemplar Class 8 Maths Chapter 10 Problem 12
100 persons had food provision for 24 days. If 20 persons left the place, the provision will last for (a) 30 days, (b) 96/5 days, (c)120 days, (d) 40 days
Summary:
Food provisions for 100 people were there to last for 24 days. If 20 people left then 80 people will be left. The provisions will now last for 30 days
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