Question
The respective ratio of the present ages of A and B is
4:5. The present age of C is 20% more than that of B. The sum of the present ages of A, B and C is 60 years. What will be the ratio of the ages of A and B after 12 years?Solution
Let the present ages of A and B be 4x years and 5x years, respectively. Therefore, present age of C = 1.2 × 5 = 6x years According to the question, 4x + 5x + 6x = 60 15x = 60 Or, x = 60/15 = 4 Therefore, required ratio = (4x + 12):(5x + 12) = 28:32 = 7:8
480 ÷ 10 + 18 % of 160 + ? * 9 = 60 * √36
`(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.)...
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.)...
(2100.23 ÷ 34.98) + (864.32 ÷ 23.9) + 1854.11 =?
- 29.98% of 249.897 = ?² – (4.98)²
What is the area (in cm²) of a square inscribed in a circle with a radius of 10√2 cm?
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 replace the question mark (?) in the following?
29.99...
(363.89% of 224.98 – 319.86% of 134.94) ÷ ? = √(134.88 ÷ 15.25)
