Question

Sam reaches his office after visiting the bank. How many decimeters of distance does Sam travel altogether?

• A. 90,000 dm
• B. 70,000 dm
• C. 10,000 dm
• D. 80,000 dm

Answer 1

The correct option is D 80,000 dm

$\text{Distance of bank from home = 2 km 500 m}$
$\text{Distance of office from bank = 5 km 500 m}$

So, total distance Sam has to travel will be = 2 km 500 m + 5 km 500 m

Converting km into dm, we see:


So, 1 km = 10,000 dm
⇒ 2 km = 2 × 10,000 = 20,000 dm
And 5 km = 5 × 10,000 = 50,000 dm

Now, converting m into dm, we see:

So, 1 m = 10 dm
⇒ 500 m = 500 × 10 = 5,000 dm

∴ The total distance traveled by Sam is:

So, Sam has traveled 80,000 dm.