Question
Present ages of Ram and Raj are in the ratio 6:7,
respectively. The ratio of their ages after 12 years will be 9:10. The difference between the ages of Raj and Rakesh is two years. Find the present age of Rakesh.Solution
We can say that, Let the present ages of Ram and Raj are 6a years and 7a years, respectively. According to question: (6a + 12)/(7a + 12) = 9/10 60a + 120 = 63a + 108 3a = 12 a = 4 So, the present ages of Ram and Raj are 24 years and 28 years, respectively. Present age of Rakesh = either 28 + 2 = 30 years or 28 – 2 = 26 years. So the present age of Rakesh is either 26 years or 30 years.
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
97, 106, ?, 195, 411, 460
- What will come in place of the question mark (?) in the following series?
712, ?, 576, 508, 440, 372 - What will come in place of (?) in the given number series.
1, 8, 27, ?, 125, 216 24, 35, 57, 90, 134, ?
165      155     135     ?     65      15
...120, 157, 116, 159, ?, 165
What will come in place of the question mark (?) in the following series?
112, 116, 121, ?, 134, 142
32   48   96   ?   720   2520
What will come in place of the question mark (?) in the following series?
17, 81, 131, 169, 197, ?
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