Advertisements
Advertisements
Question
A flood relief camp has food stock by which 80 people can be benefited for 60 days. After 10 days 20 more people have joined the camp. Calculate the number of days of food shortage due to the addition of 20 more people?
Advertisements
Solution
| Number of people | Food stock for number of days | |
| Initially | 80 | 60 |
| Available food after 10 days | 80 | 60 − 10 = 50 |
| If 20 people joined no. of days remaining food last | 80 + 2 = 100 | x |
As number of people increases food last for less number of days.
80 × 50 = 100 × x
x = `(80 xx 50)/100`
x = 40
Remaining food is to be used for 50 days.
But it only last for 40 days.
No. of days shortage = 50 – 40 = 10 days.
∴ 10 days of food shortage due to the addition of 20 more people.
APPEARS IN
RELATED QUESTIONS
A contractor estimates that 3 persons could rewire Jasminder’s house in 4 days. If, he uses 4 persons instead of three, how long should they take to complete the job?
Two persons could fit new windows in house in 3 days.
One of the persons fell ill before the work started. How long would the job take now?
In which of the following table x and y vary inversely:
| x | 9 | 24 | 15 | 3 |
| y | 8 | 3 | 4 | 25 |
Which of the following quantities vary inversely as other?
Journey (x km) undertaken by a car and the petrol (y litres) consumed by it.
1200 men can finish a stock of food in 35 days. How many more men should join them so that the same stock may last for 25 days?
Mohanrao took 10 days to finish a book, reading 40 pages every day. How many pages must be read in a day to finish it in 8 days?
Which quantities in the previous question vary inversely with each other?
If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is ______ hours.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The height of a tree and the number of years.
Find the values of x and y if a and b are in inverse proportion:
- 12 x 8
- 30 5 y
