CTET 2 Math and Science Dec 2019 Paper

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Question : 60 of 120

Marks: +1, -0

The value of

6 2/3 ÷ 2 1/2 ×3 3 /4- 5 1/2×4 1/4

+1 2/3(7/8+3/4×2/3)

is:

$-11 1/12$
$11 1/12$
$6 1/2$
$-6 1/2$

Solution:

6 2/3 ÷ 2 1/2 ×3 3 /4- 5 1/2×4 1/4

+1 2/3(7/8+3/4×2/3)

=20/3÷ {5/2}×15/4 -11/2

×17/4+5/3(7/8+1/2)

=20/3×2/5×15/4-{11×17}/8+5/3×11/8

=10-187/8+55/24

=-133/12=-11 1/12

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