Question

You entered a room of 40 people a shooter then enters killing 30 how many are left?

Answer 1

The number of people left in the room is 42.

Explanation:

In this riddle, the question is that after the killer entered the room killing 30, how many are left?

The answer would be 42.

The number of people in the room before you entered were 40. When you entered the room the number became 41 (40+1). Then a killer entered the room making the number to 42 (41+1).

Then the killer killed 30 people in the room, that is, 42-30= 12. Which means there are 12 peoplle alive in the room and 30 dead. Since no one left the room (including the bodies of the dead) the people left in the room will be 42.

Thus the correct  answer is 42.

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Answer 2

There are total 42 people in the room.

Reason :

• The sentence 'You entered a room of 40 people' says that the room was already occupied by 40 other people before my entry.

• So, on my entry, the count became 40+1 = 41 people.

• Then, A shooter entered killing 30 people.

• So, now with us 41, the shooter was added in the room, making the count 41+1 = 42 people.

• Therefore, the total no.of people present in the room is 42.

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