SSC CHSL Model Paper 19

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Question : 71 of 99

Marks: +1, -0

If

a + b = 2c,

find

a/{a-c}+c/{b-c}.

0
1
2
-1

Solution:

a+ b = 2c

⇒

a- c = c - b

∴

a/{a-c}+c/{b-c}

= a/{ c-b}+c/{b-c}

= a/{ c-b}-c/{ c-b} ={a-c}/{ c-b}

{c-b}/{c-b}=1

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