- 16
- 17
- 15
- 20

Option 1 : 16

Let's discuss the concepts related to Ratio and Proportion and Age. Explore more from Quantitative Aptitude here. Learn now!

Free

RRB ALP 2018 Full Test (Stage II - Part A)

119128

100 Questions
100 Marks
90 Mins

**GIVEN:**

6 years ago, the ratio of age of Sita and Kanak = 6 : 5

4 years from now, the ratio of age of Sita and Kanak = 11 : 10

**CALCULATION:**

Let Sita’s age 6 years ago be 6x

⇒ Kanak’s age 6 years ago = 5x

⇒ Sita’s age 4 years from now = 6x + 10

⇒ Kanak’s age 4 years from now = 5x + 10

According to the question,

(6x + 10)/(5x + 10) = 11/10

⇒ 60x + 100 = 55x + 100

⇒ 5x = 10

⇒ x = 2

∴ Kanak’s present age = 5x + 6 = 16 years
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