Question

A vehicle's speed is 1 unit for every 3 min. Match the distances (in units) with their correct time taken.

• A. 16 min
• B. 8 min
• C. 13 min
• D. 12 min

Answer 1

Here, the || refers to modulus or absolute value of a number.
So,

1. |$\frac{-16}{3}$| = $\frac{16}{3}$ units
Given, time taken for 1 unit = 3 min
$\therefore$ Time taken for $\frac{16}{3}$ units = $\frac{16}{3}$ x 3
= 16 min

2. |$\frac{26}{6}$| = $\frac{13}{3}$ units
$\therefore$ Time taken for $\frac{13}{3}$ units = $\frac{13}{3}$ x 3
= 13 min

3. |$\frac{8}{3}$| = $\frac{8}{3}$ units
$\therefore$ Time taken for $\frac{8}{3}$ units = $\frac{8}{3}$ x 3
= 8 min

4. |-4| = 4 units
$\therefore$ Time taken for 4 units = 4 x 3
= 12 min