If a: b = 3:4, b:c = 7:9, c:d = 5:7, find a:d?
5:12
7:12
3:11
5:11
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1
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A policeman starts to chase a thief. When the thief goes 10 steps the policeman moves 8 steps and 5 steps of the policeman are equal to 7 steps of the thief. The ratio of the speed of the policeman and the thief is = ?
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2
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Two number are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is:
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3
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In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?
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4
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ratio of ages of B and G is 2:3. B present age is 24. If the ages of B , G and C are in continued proportion, find C age?
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5
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If a: b = 7: 5, b: c = 9: 11, find a: b: c?
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6
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If 40% of a number is equal to twothird of another number, what is the ratio of first number to the second number?
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7
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The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?
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8
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1: 3 = 5/3: x. The value of x is?
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9
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The fourth proportional to 5, 8, 15 is:
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10
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What number has a 5:1 ratio to the number 10?
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