Question

A city map representing roads M,N,O,P,Q and R.Link roads cannot have the same colour in the map.The roads link to each other are as under: Each M,N,P and Q has link to O. P has a link to Q. Each of M and N has a link to R. Q-1.Which of the following roads can be the same colour as O on the map?

Answer 1

@thomaster are you any good with "Analytical Reasoning"?

Answer 2

@Compassionate

Answer 3

@sammixboo @jigglypuff314 @Ashleyisakitty @keshaun455 @pooja195 @kennedy467 @Miracrown @Mewcifer

Answer 4

Which of the following is the average of x2 - 16, 39 - x2 and 3x + 10 ?

a) x + 3
b) 2x + 13
c) x + 11
d) x + 11/3

Explain how?

Answer 5

help me in these two questions

Answer 6

@e.mccormick

Answer 7

@Megan30400

Answer 8

@phi would you help in these two questions

Answer 9

average of x2 - 16, 39 - x2 and 3x + 10 ?
add up these 3 expressions (and combine "like" terms)
then divide by 3 to get the average

Answer 10

@annas
In the first question, there is the sentence
" Each of M and N has a link to R. Q-1."
What is the meaning of "Q-1"? Is there a typo?
Also, I think the question means each road (MNOPQR) has a colour, but each link road cannot link roads of the same colour. For example, if there is a link road between N and O, then N and O must have different colours.

Answer 11

The net can be represented as follows

For the cycle OPQ, we need three colours, meaning that O,P and Q have to have different colours.
For the cycle OMRN, there are 4 vertices, so only two colours are needed. I will let you figure which vertices (out of OMRN) can have the same colour as O.
If in doubt, take a piece of paper and draw the colours.

Answer 12

oh sorry Q-1 is a typo it's nothing lol

Answer 13

@phi and @mathmate thank you guys. I kinda forget old stuff now I remember thanks again :)