Advertisements
Advertisements
प्रश्न
In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the camp?
उत्तर
∵ For 300 persons flour is enough for 42 days.
∴ For 1 person’s flour enough = 300 × 42 = 1260 days.
Now, 20 more persons join the camp.
So, total persons = 300 + 20 = 320
∴ For 320 persons flour enough = `12600/320 = 3/8` days
APPEARS IN
संबंधित प्रश्न
In Question 2 above, if 1 part of a red pigment requires 75 mL of base, how much red pigment should we mix with 1800 mL of base?
A, B and C working together can do a piece of work in 8 hours. A alone can do it in 20 hours and B alone can do it in 24 hours. In how many hours will C alone do the same work?
A and B can do a piece of work in 18 days; B and C in 24 days and A and C in 36 days. In what time can they do it, all working together?
A and B can do a piece of work in 20 days and B in 15 days. They work together for 2 days and then A goes away. In how many days will B finish the remaining work?
Expenditure of a family to number of members of the family are in direct proportion
In which of the following case, do the quantities vary directly with each other?
x and y are said to vary directly with each other if for some positive number k, ______ = k.
If x varies directly as y, then
| x | 12 | 6 |
| y | 48 | – |
If Naresh walks 250 steps to cover a distance of 200 metres, find the distance travelled in 350 steps.
The students of Anju’s class sold posters to raise money. Anju wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs 250 for every 60 posters sold.
- How much money would Anju’s class make for selling 102 posters?
- Could Anju’s class raise exactly Rs 2,000? If so, how many posters would they need to sell? If not, why?
