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Yes

Can you explain ?

Honestly i just tried to put the values of A as 1,0, -1 and 3. When I put 1, they match the equation

What’s the source

Ohh, cool that’ a good way ahaha

TIME IPMAT book

A varies directly with cube of B when C is a constant and inversely with square of C when B is a constant.
When B = 24 and C = 6, then A = 36, find A when
B = 12 and C = 3.

a=2(x+y)/z -3 = 2(y+z)/ x -3 = 2(x+z)/y -3

Which means (x+y)/z = (y+z)/ x = (x+z)/ y

Now you add 1 on each of the 3 equations

Gives (x+y+z)/ z= (x+y+z)/ x= (x+y+z)/ y

Which means z= x = y and there you have it

Perfect, thanks a lot

I understood the solution but how to conclude that 1 is the answer? Is it because x = y = z ?

Yes, explain please

Substitute x,y and z as x in the first equation for a

oh right got it thankyouuu

36 X 36 / 24 X 24 X 24 = A X 9 / 12 X 12 X 12

You can take az= 2(x+y)-3z, similarly ay and ax
Add all 3 to get a(x+y+z) = (x+y+z) which gives a=1

Hey! I am new here, how can I find the daily quant questions? Any heads up?

Has anyone used the OG Books (hard copy) Focus edition?
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In critical reasoning questions, if a statement supports the argument then should the negation of that statement necessary has to weaken the argument also?

Can we find the correct answer by applying this technique?

How can this be solved ?

Deconstructing the wording, we find that we need subcommittees with one member from each of the four regions, resulting in exactly four members, of which two are from Party A and two from Party B.

Since Party B has fewer members and they reside in fewer regions, let’s construct the subcommittees starting with Party B first. As Party B must delegate one member from each region it is represented in, we have the following scenarios for Party B’s delegation:

1. From North and South;
2. From North and East;
3. From South and East.

Let’s count the possibilities:

1. Party B delegates one member from North and South: this can be done in 2*4 = 8 ways. In this case, Party A should delegate from West and East: this can be done in 3*2 = 6 ways. Total for this case = 8*6 = 48;

2. Party B delegates one member from North and East: this can be done in 2*3 = 6 ways. In this case, Party A should delegate from South and West: this can be one in 1*3 = 3 ways. Total for this case = 6*3 = 18;

3. Party B delegates one member from South and East: this can be done in 4*3 = 12 ways. In this case, Party A should delegate from North and West: this can be done in 5*3 = 15 ways. Total for this case = 12*15 = 180.

Total = 48 + 18 + 180 = 246.

Answer: D.

Discussed in detail here: the-chart-above-shows-political-and-geographic-data-on-a-certain-420058.html

Hope it helps