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
`(sqrt(960.87)xx9.932+sqrt(629.998)xx26.385)/(sqrt(1028.902)xx4.977)=?`
- 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.)
40.02% of 1220.05 = ?2 + 29.09 × 7.99
(1560.23 ÷ 25.98) + (768.32 ÷ 23.9) + 1814.11 = ?
(6.93)2 × (11.98)2 ÷ √361.2 = 7?
(23.99)2 – (17.99)2 + (1378.98 + 44.99) ÷ ? = 608
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.)...
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.)...