what percent of r is s?

Is it A?

a) r - s = 0
r = s, So r is 100% of s.

b) 3r + 4s = 7
2 variables, one quation. Can't find the value of r and s based on the information above.

neerajkumar1_1 wrote:what percent of r is s?

1) r -s =0
2) 3r + 4s = 7

Wrong Thread. Request Moderator to move this to DS.

What percent of r is s?
assume x percent.
xr/100 = s
x= 100s/r

stmt1 says r=s
Hence x=1
SUFF

stmt2 says 3r+4s=7
We donot have any strict condition of whther r and s are positive/negative/fractions etc..
Hence many r and S can satisfy this eqtn.
hence INSUFF

pick A.

Hope this helps!!

sry abt the thread..
REquest moderator to put the topic in the correct thread...

the question is as such simple...

but my only doubt was if r = s
and we consider r=0

then wont r/s be undefined???

neerajkumar1_1 wrote:sry abt the thread..
REquest moderator to put the topic in the correct thread...

the question is as such simple...

but my only doubt was if r = s
and we consider r=0

then wont r/s be undefined???

Thats a good question.

Let me explain this for you.
Our main goal is to find what percent of r is s?
But not 100r/s.

0 is 100% of 0.

Question is not asking us the values of 100r/s. So we should first see if 100r/s is satisified, if not then check with the main question once. Only then we can disqualify a statement.

We need to be careful when we are translating the words into eqtns.

Hope this helps!!

This question asks for the value of an equation (What is r/s). When that happens you need to look at manipulating the equations offered.

1) can be reworked to r=s so we we know that r/s=1 (AD)

2)we cannot manipulate this equation to put is back into the fraction so pick A.