Write DP if it is a direct proportion and IP if it is an inverse proportion. Then, solve and find the answer.
Answers
Given : A car travels 350 km in 5 hours.
To Find : How far does it travel in 3 hours
it is a direct proportion or an inverse proportion.
Solution:
For a given speed more the time more the distance
Hence direct proportion
car travels 350 km in 5 hours.
=> car travels in 1 hr = 350/5 = 70 km
=> car travels in 3 hr = 3 * 70 = 210 km
Piolo can read 68 pages of a book in 2 hours
Direct proportion
=> Can read in 1 hr = 68/2 = 34
=> can read in 4 hrs = 4 * 34 = 136
enough feeds for 18 ducks for 5 days
Inverse proportion
food available = 18 * 5 = 90
sells 8 ducks, => remaining = 18 - 8 = 10
10 d = 90
=> d = 9
feed last 9 days for the remaining ducks
man walks at 6 kph, it will take him 20 minutes to reach the park.
Inverse proportion
it will take 15 min at 8 kph ( 6 * 20 = 15 * 8)
16 kilometers by making 4 trips
Direct proportion
5 trips for 20 km
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