Advertisements
Advertisements
प्रश्न
If a box of sweets is divided among 24 children, they will get 5 sweets each. How many would each get, if the number of the children is reduced by 4?
उत्तर १
Number of remaining children = 24 − 4 = 20
Let the number of sweets that each of the 20 students will get be x.
The following table is obtained:
| Number of students | 24 | 20 |
| Number of sweets | 5 | x |
If the number of students is smaller, then each student will get more sweets.
Since this is a case of inverse proportion,
24 × 5 = 20 × x
x = `(24xx5)/20`
x = 6
Hence, each student will get 6 sweets.
उत्तर २
Sweets given to 1 child = 5
Then sweets given to 24 children = 24 × 5 = 120
Total sweets = 120
If the number of children decreases by 4
Number of remaining children = 24 − 4 = 20
Sweets given to each child = `120/20` = 6
If the number of children is reduced by 4, then each child will get 6 sweets.
APPEARS IN
संबंधित प्रश्न
Find the constant of variation from the table given below:
| x | 3 | 5 | 7 | 9 |
| y | 12 | 20 | 28 | 36 |
Set up a table and solve the following problems. Use unitary method to verify the answer.
It is known that for a given mass of gas, the volume v varies inversely as the pressure p. Fill in the missing entries in the following table:
| v (in cm3) | ... | 48 | 60 | ... | 100 | ... | 200 |
| p (in atmospheres) | 2 | ... | 3/2 | 1 | ... | 1/2 | ... |
55 cows can graze a field in 16 days. How many cows will graze the same field in 10 days?
6 pipes are required to fill a tank in 1 hour 20 minutes. How long will it take if only 5 pipes of the same type are used?
Forty students stay in a hostel. They had food stock for 30 days. If the students are doubled then for how many days the stock will last?
Meena had enough money to send 8 parcels each weighing 500 grams through a courier service. What would be the weight of each parcel, if she has to send 40 parcels for the same money?
12 cows can graze a field for 10 days. 20 cows can graze the same field for _______ days
In a school there is 7 periods a day each of 45 minutes duration. How long each period is if the school has 9 periods a day assuming the number of hours to be the same?
Which quantities in the previous question vary inversely with each other?
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Compound interest on a given sum and the sum invested.
