Math, asked by plshelpthisdumbchild, 5 months ago

Write DP if it is a direct proportion and IP if it is an inverse proportion. Then, solve and find the answer.

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Answered by amitnrw
1

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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