If the cost of a nbsp-blue pen is -15 and a nbsp-black pen is -20- Find the ratio of cost of blue pen to black pen-1-23-42-32-5

The correct option is B 3:4The cost of a nbsp;blue pen is ₹15 and a nbsp;black pen is ₹20. The ratio of cost of blue pen to black pen = 15:20 = 3:4 ...

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Standard IX

Mathematics

Ratio and Proportion

If the cost o...

Question

If the cost of a blue pen is ₹15 and a black pen is ₹20. Find the ratio of cost of blue pen to black pen.

1:2

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3:4

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2:3

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2:5

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Solution

The correct option is B 3:4
The cost of a blue pen is ₹15 and a black pen is ₹20.

The ratio of cost of blue pen to black pen = 15:20 = 3:4

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If the cost of a blue pen is ₹15 and a black pen is ₹20. Find the ratio of cost of blue pen to black pen.

The correct option is B 3:4The cost of a blue pen is ₹15 and a black pen is ₹20. The ratio of cost of blue pen to black pen = 15:20 = 3:4

The correct option is B 3:4
The cost of a blue pen is ₹15 and a black pen is ₹20.

The ratio of cost of blue pen to black pen = 15:20 = 3:4