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y = (-1/3)x + 60 .... here 20 should be present instead of 60 (b = 20) How many points (x, y) lie on the line segment between (22, 12 2/3) and (7, 17 2/3) such that x and y are both integers? [spoiler]Ans:5[/spoiler] The equation of a line is as follows: y = mx + b, where m is the slope, and b is th...
- by balaze90
Sat Apr 19, 2014 6:49 am- Forum: Problem Solving
- Topic: Experts pls help me with the conceptual understanding
- Replies: 4
- Views: 3745
first of all, we have to deduce the equation of the line joining the two points. y = mx + c m = -1/3 => x + 3y = 60 Then, since the integer values of y which are lying on the line are 13,14,15,16 and 17. Substitute each value of y in the equation to find if x is an integer. In all cases x is an inte...
- by balaze90
Sat Apr 19, 2014 4:04 am- Forum: Problem Solving
- Topic: Experts pls help me with the conceptual understanding
- Replies: 4
- Views: 3745
Hi,
I am Balaji. I am taking the GMAT most probably in sep 2014. Any persons prepping in Coimbatore can call me at 9790100210.
- by balaze90
Fri Apr 18, 2014 5:00 am- Forum: Let's Meet Up
- Topic: Any GMAT takers in Coimbatore,India
- Replies: 2
- Views: 3112