Question
Present ages of P and Q are in the ratio 4:9
respectively. If Q’s age, 12 years hence from now will be 4 times of P’s age, 4 years ago from now, then find the present age of Q.Solution
Let the present ages of P and Q be 4x and 9x years respectively. According to the question, => (9x + 12) = 4 × (4x – 4) => 9x + 12 = 16x – 16 => 7x = 28 => x = 4 Therefore, the present age of Q = 9x = 36 years
41.66% of 888 + 66.66% of 1176 = ?2 - 4√ 16 Â
Evaluate: 320 − {18 + 4 × (21 − 9)}
Simplify: 72 ÷ 6 × 3 − 8 + 4
118 × 6 + 13 + 83 = ?
Simplify the following expression:
  (400 +175) ² - (400 – 175) ² / (400 × 175)
150% of 850 ÷ 25 – 25 = ?% of (39312 ÷ 1512)
(75 + 0.25 × 10) × 4 = ?2 - 14
26% of 650 + 15% of 660 – 26% of 450 = ?
115% of 40 + 3 × 4 = ? × 11 – 8