Question

यदि x(x+y+z)=20, y(x+y+z)=30, तथा
z(x+y+z)=50 है तो 2(x+y+z) का मान क्या है?
(a) 20 (b) 10 (c) 15 (d) 18​

Answer 1

Answer:

Step-by-step explanation:

From the given we can simply rewrite this as

(X+Y+Z) = 20/X=30/Y=50Z

By above terms we can find the ratio b/w X,Y,Z

X:Y:Z = 2:3:5

By putting X,Y,Z in any given equation we can find the actual values

X(X+Y+Z)=20

2(2+3+5)=20

So, now we are sure that given ratios are the values only.

Then, 2(X+Y+Z) = 2(2+3+5) = 20(answer)