Rajeevs age after 15 years will be 5 times his age 5 years back. What is the present age of Rajeev ?
11
10
12
8
Explanation:
Let Rajeevs present age be x years. Then,
Rajeevs age after 15 years = (x + 15) years.
Rajeevs age 5 years back = (x - 5) years.
Therefore x + 15 = 5 (x - 5)
x + 15 = 5x - 25
4x = 40
x = 10.
Hence, Rajeevs present age = 10 years
Let Rajeevs present age be x years. Then,
Rajeevs age after 15 years = (x + 15) years.
Rajeevs age 5 years back = (x - 5) years.
Therefore x + 15 = 5 (x - 5)
x + 15 = 5x - 25
4x = 40
x = 10.
Hence, Rajeevs present age = 10 years