Question
Present average age of 4 friends: βAβ, βBβ,
βCβ and βDβ is 22 years. If their ages are in the arithmetic progression in the same order and βDβ is 4 years older than βBβ, then find the sum of present ages of βAβ and βCβ.Solution
Common difference between ages = (4/2) = 2 years. So, let present ages of βAβ, βBβ, βCβ and βDβ be βxβ, (x + 2) years, (x + 4) years and (x + 6) years, respectively According to question: x + x + 2 + x + 4 + x + 6 = 88 Or, 4x = 76 Or, x = 19 years (Age of A) Present age of βCβ = x + 4 = 19 + 4 = 23 years Required sum = 19 + 23 = 42 years
480 Γ· 10 + 18 % of 160 + ? * 9 = 60 * β36
`(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 = ?Β² β (4.98)Β²
What is the area (in cmΒ²) of a square inscribed in a circle with a radius of 10β2 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 β 319.86% of 134.94) Γ· ? = β(134.88 Γ· 15.25)