Question
Solution
(x + 20)% of 250 = 125% of x% of 220 ⇒ (x + 20)% × 250 = 125% × x% × 220 ⇒ (x + 20)/100 × 250 = 125/100 × x/100 × 220 ⇒ (x + 20) = 5 × x/100 × 22 ⇒ (x + 20) = x/20 × 22 ⇒ x + 20 = 11x/10 ⇒ 11x/10 – x = 20 ⇒ x/10 = 20 ⇒ x = 200 10% of (x + 50) ⇒ 10/100 × 250 ⇒ 25 15% of x ⇒ 15/100 × 200 ⇒ 30 Required percent = (30 – 25)/30 × 100 ⇒ Required percent = 5/30 × 100 ⇒ Required percent = 50/3 = 16 (2/3)%
In each of the following number series, one term is missing. Find the missing term.
50, 45, 37, 26, 12, ?
9 28 83 250 ? 2248
What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
6400, 1600, ?, 80, 16, 4
384, 357, 313, 252, 174, ?
What will come in place of the question mark (?) in the following series?
13, 27, 57, 119, ?, 487
- What will come in place of the question mark (?) in the following series?
1, 9, 35, 91, 189, ? 15.975 ×27.825 + (76.01)² + 12.98×18.426 = ?+ (79.09)²
3, 8, 18, 33, 53, ?
What value should come in the place of (?) in the following number series?
192, 96, 96, 144, ?, 720
