RRB RPF RPSF SI and CONS Model Papers 10 with solutions

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Question : 38 of 120

Marks: +1, -0

Solve for

‘ a ’

:

{7}/{a-2}= {5}/{a+4}

–19
38
19
–38

Solution:

(1)

{7}/{a-2}= {5}/{a+4}

⇒ 7 a+28=5 a-10

⇒ 7 a-5 a=-28-10

⇒ 2 a=-38 ⇒ a=\ {-38}/{2}=-19

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