18 years ago, The sum of age of a family of four members = 45 × 4 = 180 years Now at present, The sum of present age of four members = 180 + 18 × 4 =252 years Let the Present age of younger child be x years And the present age of older child = (x + 12) years Now, as per the question 252 + x + 12 + x = 45 × 6 2x = 270 – 264 2x = 6 x = 3 Hence the required ratio = (3+12) : 3 = 15: 3 = 5: 1
11.232 + 29.98% of 599.99 = ? × 6.99
22.11 × 4.98 + 23.03 × 5.12 – 32.95 + 96.9 × 5.02 =?
56.05 2 – 24.24 2 + (63.98) 3/2 – 32.28% of 1500 = ? 2 + 113.03 × 5.09
39.99% of 159.98 = ?2 – 319.99% of 12.5 – 49.98% of 129.99
33.33% of 179.99 = 29.98% of 199.98 - ?
(14.56)² × √840 =?
...(749.98% of 639.897) ÷ 23.97 = ?2 - 279.98% of 19.99
1199.98 ÷ 40.48 × 20.12 = ? × 3.16
99% of 4444 + 101% of 6666 =