Question
Twelve years ago, the ratio of
the ages of Amit and Bheema was 4:5. Currently, the average age of Bheema and Chinu is 33 years, and the ratio of the present ages of Amit and Chinu is 3:2. What is the ratio of the present ages of Bheema and Chinu?Solution
ATQ, Let age of Amit and Bheema, 12 years ago was 4a years and 5a years respectively. Present age of Chinu = 33 × 2 – (5a + 12) = (54 – 5a) years ATQ; (54 – 5a)/(4a + 12) = 2/3 Or, 162 – 15a = 8a + 24 Or, 23a = 138 Or, a = 6 So, present age of Bheema = 5 × 6 + 12 = 42 years Present age of Chinu = 54 – 5 × 6 = 24 years Desired ratio = 42:24 = 7:4
What value should come in the place of (?) in the following number series?
178, ?, 692, 861, 982, 106331Â Â Â 40Â Â Â 51Â Â Â 64Â Â Â 79Â Â Â Â ?
What will come in place of the question mark (?) in the following series?
92, 153, 220, ?, 364, 443
32, 48, 72, 108, ?, 243
10, 10, 15, 30, 75, ?
17, 36, 65, 104, 153, ?
12, 16, ?, 48, 76, 112
114, 146, 210, 306, 434, ?
What will come in place of (?) Question mark in the given number series.
10, 15, 30, 75, 225, 787.5, ?
5, 18, 39, ?, 105, 150
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