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Q.

What is the simplified value of expression 9 5 6 −4 3 8 +2 7 12 ?


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a

9 1 24

b

7 1 24

c

8 1 24

d

6 1 24  

answer is C.

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Detailed Solution

Given expression is 9 5 6 −4 3 8 +2 7 12 .
On simplification we get,
=9 5 6 −4 3 8 +2 7 12 = 59 6 − 35 8 + 31 12 Since the denominators of the above expression are different, we need to take the LCM of the denominators.
Therefore, the L.C.M. of numbers 6, 8, and 12 is 24.
= 236−105+62 24 = 298−105 24 = 193 5 =8 1 24
Therefore, the simplified value of expression 9 5 6 −4 3 8 +2 7 12  is  8 1 24 . 
Hence, option (3) is correct.
 
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