Advertisements
Advertisements
प्रश्न
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
उत्तर
| 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
संबंधित प्रश्न
Which of the following are in inverse proportion?
The number of workers on a job and the time to complete the job.
Which of the following are in inverse proportion?
The time taken for a journey and the distance travelled in a uniform speed.
In a Television game show, the prize money of Rs 1,00,000 is to be divided equally amongst the winners. Complete the following table and find whether the prize money given to an individual winner is directly or inversely proportional to the number of winners?
| Number of winners | 1 | 2 | 4 | 5 | 8 | 10 | 20 |
| Prize for each winner (in Rs) | 1,00,000 | 50,000 | ... | ... | ... | ... | ... |
Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Help him by completing the following table:
| Number of spokes | 4 | 6 | 8 | 10 | 12 |
| Angle between a pair of consecutive spokes |
90° | 60° | ... | ... | ... |
- Are the number of spokes and the angles formed between the pairs of consecutive spokes in inverse proportion?
- Calculate the angle between a pair of consecutive spokes on a wheel with 15 spokes.
- How many spokes would be needed if the angle between a pair of consecutive spokes is 40°?
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?
55 cows can graze a field in 16 days. How many cows will graze the same field in 10 days?
In case of inverse proportion, `a_2/- = b_2/-`
If p and q are in inverse variation then (p + 2) and (q – 2) are also in inverse proportion.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The number of people working and the time to complete a given work.
The variable x is inversely proportional to y. If x increases by p%, then by what per cent will y decrease?
