1. Good post? |

## number line

m & r are 2 nos. on number line. What is the value of r?
1) the distance b/w r & 0 is 3 times the distance b/w m & 0
2) 12 is halfway b/w m & r

2. Good post? |
its E.

its very obvious frm 2 statement tht they arent sufficient on their own.
Lets combine. M&R both cant be on negative side since 12 divides them. hence either m,r > 0 or say m<0 and r>0

m,r>0

lets distance from 0 tom =x ; so between 0 &r = 3x; combining with statement 2 numberline will look like this

0--------m--------12--------r--
<----x---><---x----><---x--->

solving we get 2x=12, x = 6 m=6 & r =18 satisfies both statement.

but lets m<0 and r>0
m------0-------12------|------r---
<--x---><--x--><---x--><--x-->
so x = 12

thn values of m = -12 and r = 36 also

so we have 2 values of m & R .

C: Insuff

it sud b E

3. Good post? |
wrong!!!

the values are m=6, r=18

12 is half way between then and distance between 0 and r is 3 times distance between 0 and m

-Amor

4. Good post? |
Agree with E. Good explanation tictaktoe

5. Good post? |
wrong!!!

the values are m=6, r=18

12 is half way between then and distance between 0 and r is 3 times distance between 0 and m
y not -12, 36 too?

st1: distance from -12 to 0 = 12 units = 3 times distance between 0 & 36.
st 2: 12 is midway between -12 & 36 . at a distance of 24 units from either.

6. Good post? |
oops i thought positive numbers...i take back my statement...thanks for correcting me...

E is correct...

-Amor

7. Good post? |
I opt for E.

1) Insufficient.
2) Insufficient.

1) + 2)

If M is +ve........then M = 6, thus R = 18 to satisfy both pieces of info.
If M is -ve.........then M = -12, and R = 36 in this case and still satisfies both pieces of info.

Thus both together are insuffucient too......and the best answer is E. What is the Official Answer? Does this make sense?

8. Good post? |
good one tictactoe. I made the same mistake as amor

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