Advertisements
Advertisements
प्रश्न
A postman can sort out 738 letters in 6 hours. How many letters can be sorted in 9 hours?
Advertisements
उत्तर
Let the required number of letters be x.
| Number of letters | 738 | x |
| Required time to sort in hours | 6 | 9 |
They are in direct proportion.
`(x_1)/(y_1) = (x_2)/(y_2)`
`738/6 = x/9`
x = `(739 xx 9)/6`
x = 1107
In 9 hours 1107 letters can be sorted.
APPEARS IN
संबंधित प्रश्न
Sita can finish typing a 100 page document in 9 hours. Mita in 6 hours and Rita in 12 hours. How long will they take to type a 100 page document if they work 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?
8 men can do a piece of work in 9 days. In how many days will 6 men do it?
If the cost of 8 apples is ₹ 56 then the cost of 12 apples is _______
A dozen bananas costs ₹ 20. What is the price of 48 bananas?
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Sales Tax and the amount of the bill.
If Naresh walks 250 steps to cover a distance of 200 metres, find the distance travelled in 350 steps.
If 25 metres of cloth costs Rs 337.50, then what will be the cost of 40 metres of the same type of cloth?
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?
