Math, asked by renutripathi7777, 4 days ago

1) a car travels 128 km on 12 litres of petrol. find out how far the car would travel on a full tank of petrol that can hold 36 litres of petrol?

2) a photographer enlarge a 7×5 photo to a 14×10 photo. can u find if the school sizes of these two photos form a proportion​

Answers

Answered by joshikasarkar
1

Answer:In 12litres petrol, car can travel =128Km. 128/12 ×30=320Km

Step-by-step explanation:

Answered by Anonymous
2

1) GIven,

A car travels 128 km on 12 litres of petrol

To find,

How far the car would travel on a full tank of petrol that can hold 36 litres of petrol

Solution,

With every 12 litres of petrol, the car travels 128 km

Therefore, With 12*3 litre of petrol, the car travels 128*3  km

or, With 36 litre of petrol, the car travels 384  km

Hence, the car would travel on a full tank of petrol that can hold 36 litres of petrol is 384 km

2) Given,

a photographer enlarge a 7×5 photo to a 14×10 photo

To find,

Find if the school sizes of these two photos form a proportion​

Solution,

Area of the original photo of size 7X5 = 35

Area of the enlarged-photo = 14 X 10 = 140

The Proportion of the two photos = Area of the original photo/Area of the enlarged photo

or, The Proportion of the two photos =  35 : 140 = 1:4

Hence, the proportion is 1:4

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