Question
Average present age of 'A', 'B' and 'C' is 25 years
whereas average present age of 'A', 'B', 'C' and 'D' is 27 years. Three years hence from now, ratio of age of 'D' and 'E' is 6:5. Find the age of 'E' two years ago from now.Solution
Present age of 'D' = 4 x 27 - 3 x 25 = 108 - 75 = 33 years Age of 'E' three years hence from now = (5/6) x (33 + 3) = 30 years Present age of 'E' = 30 - 3 = 27 years Required age = 27 - 2 = 25 years
What approximate value will replace the question mark (?) in the following?
24.99...
`[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=` ?
(3/7 of 1049.88 + 44.95% of 799.79) ÷ (√168.89 + 24.77% of 400.11) = ?
- 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.)
The greatest number that will divide 398,436, and 542 leaving 7, 11, and 15 as remainders, respectively, is:
95.001% of 8219.99 - 4/9 % of 5399.98 + 109.99 = ?Â
25.22% of (59.9 × 8.01) + 69.97 =?Â
9.992 + (5.01 × 4.98) + ? = 225.03
29.88% of 3599.90 + 5/12 of 2399.81 – 34.81% of 1200.18 = ?
15.15% of (150.50 + 249.50) + 8.08³ - (10.10 of 5.05) = ? of (75.75 - 25.25)
