SSC CGL 11 Jun 2019 Shift 1 Paper

Question : 55 of 100

Marks: +1, -0

If a : b = 5 : 3, then (8a - 5b) : (8a + 5b) is equal to:

Solution:

a: b=5: 3

\ {8 a-5 b}/{8 a+5 b}=\ {8 \×5-5 \×3}/{8 \×5+5 \×3}

=\ {(40-15)}/{(40+15)}=\ {25}/{55}=\ {5}/{11}

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