Question
The ratio of the ages of Aman and Bhuvan 5 years ago was
5:6 respectively. 7 years from now, their ages will be in the ratio 9:10 respectively. What is the current age of Bhuvan?Solution
ATQ,
Let the ages of Aman and Bhuvan 5 years ago be '5x' years and '6x' years respectively. So, age of Aman after 7 years = 5x + 5 + 7 = (5x + 12) years And, age of Bhuvan after 7 years = 6x + 5 + 7 = (6x + 12) years ATQ, [(5x + 12) ÷ (6x + 12)] = (9/10) So, 10 × (5x + 12) = 9 × (6x + 12) => 50x + 120 = 54x + 108 => 12 = 4x => x = 3 So, present age of Bhuvan = 6 × 3 + 5 = 23 years
What approximate value will replace the question mark (?) in the following?
24.95...
- 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.)
14.96% of 120.03 - 107.99 + 88.93% of 199.87 = ?
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.)...
(1177.99 + 226.99 + 94.923) ÷ 24.97% of 59.989 = ?
What approximate value should come in place of question mark (?) in the following equations?
39.9% of 1720 + 80.2% of 630 = 89.9% of 1280 + ?
A train takes 8 seconds to pass a dog running in the opposite direction to the train at a speed of 10 m/s. Given that the train i...
(32.15)2 – (255.89)(1/2) – (10648.08)(1/3) = ?
1449.98 ÷ 50.48 × 10.12 = ? × 2.16
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)