Question

Of the 38 people in my office, 10 like to drink chocolate, 15 are cricket fans, and 20 neither like chocolate nor like cricket. how many people like both cricket and chocolate?

Answer 1

Total people U = 38
Chocolate drinkers A = 10
Cricket fans B = 15
No of who neither like A nor B = 20
No of who like both = 38 - ( 10 + 15 +20 )
= 38 - 35
= 3

Answer 2

Hey!

No. Of people in office = 38
No. Of people like to drink chocolate = 10
No. Of people are cricket fans = 15
No. Of people who don't like any of these = 20

Hence, no. Of people like both =
$38 - (10 + 20 + 15)$
Hence no. Of people like both = 3