Let the present ages of P and Q be 3x and 7x years respectively. According to the question, => (7x + 10) = 5 × (3x – 6) => 7x + 10 = 15x – 30 => 8x = 40 => x = 5 Therefore, the present age of Q = 7x = 35 years
18 19 34 111 428 2165 ?
... -1, 5, 23, 59, ?
13 7 8 13.5 29 ? 228
72, 90, 110, ?, 156, 182, 210
41, 82, ?, 984, 4920, 29520
72, 216, 54, 270, ?, 315
What will come in place of the question mark (?) in the following series?
24, 25, 34, 59, 108, 189, ?
23 40 67 104 ? 208
...50, 64, 80, 98, 118, ?
12, 16, ?, 48, 76, 112
