Question

Fifty people said they liked apples or bananas or both. Forty percent of people like apples and 70% of the people like bananas. What percentage of people like only apples?

Answer 1

"fifty people"? I assume you meant 50 percent

if 70 percent liked bananas, then 30 percent did not like bananas.

of the fifty people then, 15 did not like bananas, so 35 liked apples only.

Answer 2

No the question actually says fifty people