Question

Krishna got on an elevator on the 12th floor and went up 3 floors. If he then went down 8 floors, what floor is krishna now on ?

Answer 1

Answer:

take a look like a good time

Answer 2

Answer:

The Krishna is at 7th floor at last.

Step-by-step explanation:

1) Krishna got on an elevator on the 12th floor.

He was initially at the 12th floor and then got on an elevator.

2) Then he went up 3 floors.

$12 + 3 = 15$

He was at 12th floor and went up by 3 floors so he will be at 15th floor by now.

3) He then went down 8 floors

For up we added the number and for down we will substract it because now he is moving in the opposite direction.

Also note that the floor number increases in the upward direction and decreases in the downward direction.

now,

$15 - 8 = 7$

He was at 15th floor and went down 8 floors. He went down so this time 8 will be substracted from 15 i.e. 15-8= 7 So he is at 7th floor by now.

Therefore finally he is at 7th floor

Krishna is at 7th floor as initially he was at 12th floor and went 3 floors up and then 8 floors down.