Question
When 18 years is subtracted from the present age of A
and the obtained result is divided by 3, then the present age of his nephew is obtained. If the present age of his nephew is 9 years less than the present age of A’s son who is 16 years old, then find the present age of A.Solution
Let the Present age of A be ‘x’ years Present age of his nephew = 16 – 9 = 7 years Therefore, {(x – 18)/3} = 7 Or, x – 18 = 21 Or, x = 39 Therefore, present age of A = 39 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