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UPTET Paper 1 Model Test 5

Section: Mathematics

Question : 111 of 150

Marks: +1, -0

12 m 45 cm ∶ 81 cm

Solution:

Concept:

Convert both quantities to the same unit (centimetres) using

1 \text{ m} = 100 \text{ cm}

. Then simplify the ratio to lowest terms.

Explanation:

First, convert 12 m 45 cm to centimetres:

12 \times 100 = 1200 \text{ cm}

, plus 45 cm gives

1245 \text{ cm}

The ratio is

1245 : 81

. Divide both numbers by their greatest common divisor, 3:

1245 \div 3 = 415

81 \div 3 = 27

Thus the simplified ratio is

415 : 27

Answer:

D. 415 ∶ 27

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