Question
Sum of the present ages of A, B, C and D is 60 years.
After 6 years ratio of their ages is 5:4:3:2. What is C’s present age?Solution
At present sum of age = 60 years After 6 years sum of age will be, => 5x + 4x + 3x + 2x = 60 + 6 × 4 => 14x = 60 + 24 => x = 84/14 => x = 6 C’s present age = 3x – 6 = 12 years
60 61 57 66 ? 75 39
...17, 36, 65, 104, 153, ?
What will come in place of the question mark (?) in the following series?
9, 22, 61, ?, 217, 334
4097, ?, 4359, 4493, 4629, 4767
41, 82, ?, 984, 4920, 29520
What will come in place of (?) question mark in the given number series.
22, 23, 19, 28, ?, 37
13, 14, 23, 48, 97, 178, ?
12, 11, 20, 57, 224, 1015
290, 571, 900, ?, 1485, 1890
What will come in place of the question mark (?) in the following series?
111, 109, 115, ?, 211, -509