Two numbers are respectively 20% and 50% more than a third number. What is the ratio of the first two numbers? MCQ with Answer and Explanation

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Two numbers are respectively 20% and 50% more than a third number. What is the ratio of the first two numbers?

A. 5:6

B. 2:5

C. 3:5

D. 4:5

Answer: Option D

Solution (By JKSSB Mock Tests)

Let the third number be 100. First number = 120. Second number = 150. Ratio = 120:150 = 4:5.

This question belongs to: Maths Percentage

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A man spends 20% of his income on rent, 25% of the remainder on food, and 30% of what then remains on education. He saves the rest. If he saves Rs. 8400, find his income.

A. Rs. 18000

B. Rs. 22000

C. Rs. 20000

D. Rs. 25000

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Correct Answer: Option D

Explanation:
Rent 20%, left 80%. Food 25% of 80% = 20% of income, left 60%. Education 30% of 60% = 18% of income, left 42% = 8400 → income = 8400/0.42 = 20000? Wait, 8400/0.42 = 20000. So income 20000, option B. But I set D as 25000. Let's recalc: 42% = 8400 → income = 20000. So answer B. I'll correct options: A 18000, B 20000, C 22000, D 25000. So answer B.

This question belongs to: Maths Percentage