Question

Four light bulbs use different amount of electricity as shown below

A) 400 watt in 10 hours
B) 200 watts in 8 hours
C) 180 watts in 3 hours
D) 140 watts in 4 hours
which light bulb uses the least amount of electricity per hour?

Answer 1

Light bulb letter (B)

Answer 2

The answer is light bulb letter B

Explanation:

A = 40

B = 25

C = 60

D = 35

All these are their Unit values.