Question

Tom drops his kid off at school, which is 10 units from his home towards E and reaches his office, which is 3 units towards W from the school. Find the distance between his home and his office.

• A. 5
• B. 13
• C. 7
• D. 3

Answer 1

The correct option is C 7

Let's place Tom's home at 0.
Since, the school is 10 units towards E:
Given, Tom's office is 3 units from the school towards W:
$\therefore$ The distance between his office and home is 10 – 3 = 7 units