AP ICET 2017 Shift 2 Paper

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Question : 87 of 200

Marks: +1, -0

If

a_1,a_2,a_3

and

a_4

in the increasing order of the elements in the set

\{\;\;{2}/{7},\;\;{7}/{15},\;\;{5}/{8},\;\;{9}/{23}\}

then

a_4-a_1

$2/7$
$19/56$
$17/56$
$15/56$

Solution:

5/8=0.625→a_4

9/23=0.391→a_2

∴a_4-a_1=5/8-2/7={35-16}/56=19/56

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