1000 DS, Test 13,

jaheer · Posted: Sun Mar 18, 2007 1:54 am Post subject: 1000 DS, Test 13,

Someone Help me with this.

13. Larry saves x dollars per month. Will Larry’s total savings one year from now exceed his present savings by at least $500 ? (Assume that there is no interest.)

(1) In 6 months Larry's total savings will be $900.
(2) In 3 months Larry's total savings will exceed his present savings by $150.

Thanks

jayhawk2001 · Posted: Sun Mar 18, 2007 8:29 am Post subject:

For this question, it is sufficient if we know x since 12*x will be the increment
from the present savings.

Let i be the present savings

1 - insufficient. i + 6x = 900. We don't know i and/or x

2 - sufficient. (i + 3x - i) = 150. So x = 50 and so 12x = 600 which is > 500

So, is the answer B ?

keepsmilinyaar · Posted: Wed Apr 04, 2007 7:12 am Post subject:

Larry saves x dollars a month. .
Larry’s total savings one year from now would be 12x dollars in a year.

So 12x should be greater than 500.
So to find an answer we only need to know the value of x.

(1) In 6 months Larry's total savings will be $900.
6x = 900
x can be found out.

(2) In 3 months Larry's total savings will exceed his present savings by $150.
3x = 150
x can be found out..

I think we can find the answers from both the options.
I hope I am correct.

guynoor · Posted: Wed Apr 04, 2007 8:09 am Post subject:

guynoor · Posted: Wed Apr 04, 2007 8:11 am Post subject: