Question

if a/4 = b/5 then.....
ans?​

Answer 1

Answer:

If A+B = 10, then definitely A or B can not take values other than 1 to 9

And if A-B = 5, then definitely A must be greater than 5

So 5 < A < 9 and 0 < B < 4 (bcz A-5 = B)

So to make A + B = 10, only combinations can be A =7, B = 3 and A= 8 and B = 2

But none of the above makes A-B = 5 which leads us to conclusion that A and B are non integers. And above combinations leads us to another conclusion -

A must be between 7 and 8 (7 < A < 8)

and B must be between 2 and 3 (2 < B < 3)

So what can be possible combination (A,B) for A + B = 10 - (7.1,2.9) or (7.2,2.8) or (7.3,2.7) or (7.4,2.6) or 7.5,2.5) or (7.6,2.4) or (7.7,2.3) or (7.8,2.2) or (7.9,2.1)

Out of the above combinations, only A = 7.5 and B = 2.5 satisfy A - B = 5

And because both - A+B = 10 and A -B = 5, are Equations of straight lines, therefore we can also conclude that they will intersect at one point only. So no need to search for more solutions.

Thus answer is A = 7.5 and B = 2.5 and A/B = 3

MAY BE I MADE - “ TIL KA TAAD” ..haha.

But this is also one way to solve it.