Question
The current average age of 'Akhil', 'Bittu', and 'Chinu'
is 42 years. 'Bittu's' age is 25% greater than 'Akhil's'. Twelve years from now, the age ratio of 'Akhil' to 'Chinu' will be 2:1. Calculate the difference in the current ages of 'Akhil' and 'Bittu'.Solution
ATQ, Let the ages of ‘Akhil’ and ‘Chintu’, 12 years hence from now be 2a years and ‘a’ years, respectively Therefore, present age of ‘Chintu’ = (a – 12) years Present age of ‘Akhil’ = (2a – 12) years Therefore, present age of ‘Bittu’ = 1.25(2a – 12) years According to the question, 1.25(2a – 12) + 2a – 12 + a – 12 = 42 × 3 Or, 5.5a – 39 = 126 Or, 5.5a = 165 Or, a = 30 Therefore, present age of ‘Akhil’ = 2a – 12 = 48 years Present age of ‘Bittu’ = 1.25 × 48 = 60 years Required difference = 60 – 48 = 12 years
- 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.)
√2310 × 4.99 + (359.72 + 519.87) = ?2 + 63.88% of 150.42
25, 28, 26, 29, 27, ?
(9116.89 – 8024.89 + 902.95) × 14 = 1800 × ?
30.05% of 149.97 + ? X 8.88 = (39.95 + 12.012 - 13.0322)2
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 should come in the place of (?) in the following questions?
19.98% of 349.89- √290 * ? = √82 % of 399
185.92 ÷ 5.98 - (4.002 2 + 114.03 of 5.03 ÷ 18.99 of 6.04 = 5.01 of 2.99 + ? ÷ 12.02
(11.98% of 449.99) - 3.998 = √?
- 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.)
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