Question

from a sample of 80 batteries 3 are faulty work out the percentage of faulty batteries

Answer 1

Answer:

3.75%

Step-by-step explanation:

Given

total batteries=80

total faulty=3

percent of faulty batteries=

$= 3 \div 80 \times 100 \\ = 3 \times 5 \div 4 \\ = 3.75$

Answer 2

Answer:

3.75 %

Step-by-step explanation:

If 3 batteries are dead from 80 = 3/80

We have to find the PERCENTAGE

So, we multiply it by 100

                                                    = 3/80 x 100

                                                    = 3.75 %