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The number of students in a college for Science stream and Arts stream are in the ratio of 4 : 5. In the next year, the percentage decrease in the Arts stream by 20% and percentage increase in the Science stream by 40%. In next year, find the ratio between the number of students of Science and Arts stream.1. 1 : 52. 35 : 163. 7 : 54. 4 : 75. 16 : 35 |
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Answer» Correct Answer - Option 3 : 7 : 5 Given: Let number of students in Science and Arts stream be 4a and 5a respectively. Calculation: The number of students in Science stream in the next year = 4a × 140/100 = 28a/5 The number of students in Arts stream in the next year = 5a × 80/100 = 20a/5 ∴ Required ratio = (28a/5) : (20a/5) = 7 : 5 |
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