LIC AAO Model Paper 6

Question : 53 of 160

Marks: +1, -0

There is a hill behind a person's house. He walks up the top of the hill at a speed of 1

1/2

km/hour, but walks down it at 4

1/2

km/hour. If It takes him 6 hours for the entire journey, the distance, in km, from his house to the top of the hill is

Solution:

If the distance be xkm, then

x/{3/2}+x/{9/2}

= 6
⇒

{2x}/3+{2x}/9

= 6
⇒

{6x+2x}/9

= 6
⇒ 8x = 9 × 6
⇒ x =

{54}/8

{27}/4

= 6

3/4

km .

Go to Question:

Prev Question

Next Question