General
General
Easy
Question
An ice cream store can make 280 quarts of ice cream in 7 hours. ____________ quarts of ice cream can be made in 48 hours.
- 1200
- 1500
- 1780
- 1920
Hint:
In the question , we are given about no of quarts of ice-cream an ice-cream store can make in 7 hours. It is 280. We have to find out how many quarts of ice-cream, the store can make in 48 hours. From the first data we can find out the rate at which the store is making the quarts, by taking the ratio. Using this value we can find the required quantity.
The correct answer is: 1920
The ice-cream store can make 280 quarts in 7 hours.
We have to find the rate at which the ice-cream store is making the quarts. We will find it by taking the ratio of number of quarts and time required to make it. As the rate will be constant, we will use this value to find the number of quarts made in 48 hours.
So the equation becomes
So the rate = 40 quarts per hour
Let’s find the number of quarts in 48 hours
We will rearrange this equation for no of quarts, as we have to find number of quarts
For this we will multiply both sides by Time
Time × Rate = Number of quarts
Number of quarts = Time × Rate
Substituting the values we have found
Number of quarts = 48 × 40
Number of quarts = 1920
Therefore, number of quarts the ice-cream store can make in 48 hours is 1920.
We should be careful about the units. Before operation we should make sure same quantities have same unit.
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