Question

Bob's brother is $y$ years old. If Bob is $4$ years younger than his brother, what is Bob's age?

• A. $(4-y)\text{years}$
• B. $(y-4)\text{years}$
• C. $(y+4)\text{years}$
• D. $(y\times 4)\text{years}$

Answer 1

The correct option is B $(y-4)\text{years}$

Bob's brother's age $=y$ years

Bob is $4$ years younger than his brother.

Hence, if we subtract $4$ from the age of Bob's brother, we will get Bob's age.

$\therefore$ Bob's age $=(y-4)$ years