Question

There are 500 people in a small town. 70% percent of them are adults and the rest are children. 30% of the children are infants. How many infants are there in the town?

• A. 45
• B. 46
• C. 47
• D. 48

Answer 1

The correct option is A 45

70% are adults and the rest are children. ​
​
So, 100 – 70 = 30% are children.​

Now,​
$30\%of500=\frac{30}{100}\times 500=150$
​
30% of children are infants. $=>\frac{30}{100}\times 150$ = 45 infants