Advertisements
Advertisements
प्रश्न
6 pumps are required to fill a water sump in 1 hr 30 minutes. What will be the time taken to fill the sump if one pump is switched off?
Advertisements
उत्तर
Let x be the required time taken
| Time taken in minutes | 1 hr. 30 m = 90 m | x |
| Number of pumps | 6 | 6 − 1 = 5 |
As the number of pumps increases the time taken to fill the sump will be less
∴ They are in inverse proportion
x1y1 = x2y2
90 × 6 = x × 5
1
`"60)"overline108("`
60
48
x = `(90 xx 6)/5`
= 108 minutes
= `108/60`
= 1 hr. 48 min
Time taken in minutes 1 hr. 48 m
APPEARS IN
संबंधित प्रश्न
A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his cattle?
A farmer has enough food for 144 ducks for 28 days. If he sells 32 ducks how long will the food last?
Six men can complete a work in 12 days. Two days later, 6 more men joined them. How many days will they take to complete the remaining work?
If on increasing a, b decreases in such a manner that ______ remains ______ and positive, then a and b are said to vary inversely with each other.
If one angle of a triangle is kept fixed then the measure of the remaining two angles vary inversely with each other.
When two quantities are related in such a manner that if one increases and the other decreases, then they always vary inversely.
If a and b vary inversely to other, then find the values of p, q, r ; x, y, z and l, m, n.
| a | 2 | y | 6 | 10 |
| b | x | 12.5 | 15 | z |
A packet of sweets was distributed among 10 children and each of them received 4 sweets. If it is distributed among 8 children, how many sweets will each child get?
The variable x is inversely proportional to y. If x increases by p%, then by what per cent will y decrease?
