```
```11)In 40 years, age of a person becomes five times of his present age. What will be his age after 10 year?

A) 15 yrs

B) 18 yrs

C) 20 yrs

D) None

**Answer:**

**Explanation:**

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```12) After 12 years, the age of Suresh will be 4 times as old as he is now. How many years hence will he be 8 times as old as he now?

A) 21 yrs

B) 18 yrs

C) 32 yrs

D) None

**Answer:**

**Explanation:**