Question
Average age of 4 daughter of a family is 8 years and
average age of daughter together with their parents is 16 years. If mother is 4 years younger than father. Find the age of father 2 year ago.Solution
Total age of daughters = 4 × 8 = 32 years ----- (i) Total age of daughters and their parents = 6 × 16 = 96 years ----- (ii) Here mother is 4 years younger than father, Solving (i) & (ii) we get, Father’s age = 34 years Father’s age 2 years ago = 34 − 2 = 32 years
2380.03 ÷ 84.98 x 39.9 = ? + 15.32
The speed of the boat in still water is 20% less than the speed of the boat in downstream. The time taken by the boat to cover 780 km distance in upstre...
(1709.87 ÷ 38.09) + (768.11 ÷ 23.87) + (6599.81 ÷ 88.06) = ?
- 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.)
56.02% of 1499.98 + 64.04% of 2501.01 = ? + 25.05 × 49.98 + 6.063
25.22% of (59.9 × 8.01) + 69.97 =?Â
18.22 × 11.99 + 154.15 = ?
40.22 of 249.98% + 459.99 ÷ 23.18 = ?
648.13 ÷ 35.86 + 28.88 × 13.13 – 39.92% of 900.19 = ?
(284.85 ÷ 15.09) x 2.22 + 51.17 = 157.69 - ?
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