Question
The average age of A and B is 3 years more than the
average age of A and C. If B’s current age is 4/3 times A’s age, and C is 2 years older than A, what is A’s present age?Solution
Given that,(A + B)/2 = [(A + C)/2] + 3........(1)Also given that,B = 4A/3And C = A + 2From equation (1):[A + (4A/3)]/2 = [(A + A + 2)/2] + 37A/6 = A + 4(7A/6) - A = 4A = 24 years
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
20% of 80 × 26% of 65 = ?
(20.98 ÷ 2.91) + (15.12 – 5.96) = ?
( 19.95% of 799.89 ) × 12.05 = ? 2 + 18.99 × 6250 ÷ 1250
35.05% of 14.87 × (13.02 – ?) + 30.19 = 188.7
28 men and 21 women can complete a work in 16 days. All of them start working together and after working for 12 days the women stopped working. All men ...
Find the approximate value of Question mark(?). No need to find the exact value.
59.88% of 419.78 + (24.09 × 5) ÷ 3 – √(80.81) = ?
...(`sqrt(224.95)` `xx` `sqrt(440.89)` ) + (`sqrt(783.82)` `xx` `sqrt(440.87)` ) = ? + 150.03% of 120.33 - 139.86% of 1249.88
...1587.9 + 9650.98 + 10612.8 =?3 - 2536.67
(7008.79)2/7009.201 × √1442.76 × 0.4897 =?
Relevant for Exams:
