Question

If x + y + z = 25, x + y = 19 and y + z = 18, then y equals
(A) 13
(B) 17
(C) 12​

Answer 1

Answer:

so, correct answer is (c)12

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Answer 2

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__⤵️⤵️Solution ⤵️⤵️____

Given ;

x + y = 19 -----(i)

y + z = 18. -----(ii)

x+ y + z = 251

(x + y ) + z = 25

19 + z = 25 {From equation ( i )}

z = 25 - 19

z = 6

Substituting the value of z in equation (ii) , we get ;

y + z = 18

y + 6 = 18

y = 18 - 6

y = 12

➡️So,, the answer is option(C)↩️

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