Advertisements
Advertisements
प्रश्न
If 600 rupees buy 15 bunches of feed, how many will 1280 rupees buy?
Advertisements
उत्तर १
Let us suppose x bunches of feed can be bought for 1280 rupees.
The number of bunches of feed and their cost vary in direct proportion.
∴ `15/600 = "x"/1280`
⇒ x = `(15 xx 1280)/600`
⇒ x = `(15 xx128)/60`
⇒ x = `(1920)/60`
x = 32
Hence, 32 bunches of feed can be bought for 1280 rupees.
उत्तर २
We are given that 600 rupees can buy 15 bunches of feed.
First, find the cost of 1 bunch:
⇒ `600/15 = 40` rupees per bunch
Now, calculate how many bunches 1280 rupees can buy:
⇒ `1280/40 = 32`
Thus, 1280 rupees can buy 32 bunches of feed.
संबंधित प्रश्न
Anupama takes 125 minutes in walking a distance of 100 metre. What distance would she cover in 315 minutes?
In 15 days, the earth picks up 1.2 × 108 kg of dust from the atmosphere. In how many days it will pick up 4.8 × 108 kg of dust?
A cistern has two inlets A and B which can fill it in 12 hours and 15 hours respectively. An outlet can empty the full cistern in 10 hours. If all the three pipes are opened together in the empty cistern, how much time will they take to fill the cistern completely?
A postman can sort out 738 letters in 6 hours. How many letters can be sorted in 9 hours?
When the distance is kept fixed, speed and time vary directly with each other.
Length of a side of a square and its area vary directly with each other.
A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25 minutes?
A volleyball court is in a rectangular shape and its dimensions are directly proportional to the dimensions of the swimming pool given below. Find the width of the pool.
Pattern B consists of four tiles like pattern A. Write a proportion involving red dots and blue dots in pattern A and B. Are they in direct proportion? If yes, write the constant of proportion.
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. Could Anju’s class raise exactly Rs 2,000? If so, how many posters would they need to sell? If not, why?
