Class 8 · Mathematics · Ganita Prakash - Part I

7. Proportional Reasoning-1

Try question 1

The ratio 12 : 18 in simplest form is

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Answer and explanation

Answer: B. 2 : 3

Divide both by 6.

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Try question 2

If 5 pens cost ₹40, what do 8 pens cost?

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Answer and explanation

Answer: C. ₹64

One pen costs ₹8, so 8 pens cost ₹64.

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Try question 3

On a map, 1 cm stands for 5 km. A distance of 3 cm on the map is

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Answer and explanation

Answer: B. 15 km

3 × 5 = 15 km.

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