18
In a camp 180 students had ration for 20 days. How many students should leave the camp if the ration should last for 25 days?
- A36
- B24
- C28
- D40
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0
CCommunity
Let the quantity of ration be ‘x’ kg.
Quantity of ration consumed by 180 students in one day = (x/20) kg
Quantity of ration consumed by each student in one day = (x/20)/180 = (x/3600) kg
Quantity of ration consumed by each student in 25 days = (x/3600) × 25 = (x/144) kg
Number (No.) of students required to consume ‘x’ kg in 25 days = x/(x/144) = 144
No. of students who should leave the camp if the ration should last for 25 days = 180 – 144 = 36
Quantity of ration consumed by 180 students in one day = (x/20) kg
Quantity of ration consumed by each student in one day = (x/20)/180 = (x/3600) kg
Quantity of ration consumed by each student in 25 days = (x/3600) × 25 = (x/144) kg
Number (No.) of students required to consume ‘x’ kg in 25 days = x/(x/144) = 144
No. of students who should leave the camp if the ration should last for 25 days = 180 – 144 = 36
0
CCommunity
m1n1=m2n2
so 180 students * 20 days= x students * 25 days
we will get the value of x as 144
that means for 144 students the ration will come for 25 days
that means we need to subtract 144 from 180 it will give you the total number of students to leave the campus
= 180-144
= 36
so 180 students * 20 days= x students * 25 days
we will get the value of x as 144
that means for 144 students the ration will come for 25 days
that means we need to subtract 144 from 180 it will give you the total number of students to leave the campus
= 180-144
= 36