Question
A’s age is 120% of what he was 5 years ago, But 40% of
what it will be after 5 years. What is his present age?Solution
Let present age of A be x years. => 120% of (x - 5) = 40% of (x + 5) => 3(x - 5) = (x + 5) => 3x – 15 = x + 5 => x = 10 years
More Age Questions
What approximate value should come in the place of (?) in the following questions?
42.98% of 849 + 18.45% of 1201 ≈ ?(1550.23 ÷ 30.98) + (864.32 ÷ 23.9) + 1724.11 = ?
Find the ratio of the area of an equilateral triangle of side ‘a’ cm to the area of a square having each side equal to ‘a’ cm.
72.8% of (215.69 + 189.38) - 5.97² + (3.01 of 7.8) = ? of (64.02 - 38.95)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
245.67 + 20.05² + ?³ = √961.89 * 34.02
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
? + 539.76 ÷ 5.4 × 94.80 = 9829.54
(14.98% of 319.99) - 7.998 = √?
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