Exercise :: Ratio and Proportion - General Questions
- Ratio and Proportion - Important Formulas
- Ratio and Proportion - General Questions
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A and B together have Rs. 1210. If |
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Answer: Option B Explanation:
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of A's amount is equal to 
of B's amount, how much amount does B have?
A =
B
B's share = Rs.| 2. | Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is: |
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Answer: Option C Explanation: Let the third number be x.
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| 3. | A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B's share? |
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Answer: Option C Explanation: Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively. Then, 4x - 3x = 1000
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| 4. | Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats? |
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Answer: Option A Explanation: Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively. Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).
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| 5. | In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quanity of water to be further added is: |
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Answer: Option D Explanation:
Quantity of water in it = (60- 40) litres = 20 litres. New ratio = 1 : 2 Let quantity of water to be added further be x litres.
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