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A number decreased by 8% gives 69. The number is(a) 80 (b) 75 (c) 85 (d) none of these |
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Answer» (b) 75 Because, Let the required number be x Now, = x – 8% of x = 69 = [x – {(8/100) × x}] = 69 = [x – {8x/100}] = 69 = [x – {2x/25}] = 69 = [(25x – 2x)/25] = 69 = [23x/25] = 69 = x = (69 × 25)/23 = x = (75) |
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