Question
Currently, the age of 'A' is 37.5% greater than 'B's
age, with a difference of 15 years between them. In five years, what will be the age ratio of 'A' to 'B'?Solution
Let present age of ‘B’ be ‘8x’ years. So, present age of ‘A’ = 8x × 1.375 = ‘11x’ years ATQ; 11x – 8x = 15 Or, 3x = 15 So, x = 5 5 years hence from now, Age of ‘A’ = 11x + 5 = 55 + 5 = 60 years Age of “b’ = 8x + 5 = 40 + 5 = 45 years Required ratio = 60:45 = 4:3
Find the missing number in the given number series.
2, 5, 11, 23, 47, ?418, 406, 430, 382, 478, ?, 670
1 12 31 58 93 ?
What will come in place of the question mark (?) in the following series?
92, 153, 220, ?, 364, 443
13 19 32 52 ? 113
250 Â Â Â 25 Â Â Â Â 5 Â Â Â Â ? Â Â Â Â 0.6 Â Â Â Â Â 0.3
10, 15, 25, 35, ?, 65
What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
4    11     22     ?      56    79    106
...48, 24.5, ?, 39.75, 81.5, 206.25, 621.75
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