The correct answer is option 4 i.e. -1145
Solution :
Simplifying the mixed fractions :
Numerator = 27+316÷34×421−211
Applying BODMAS and solving, Numerator = 19
Denominator = 23×35−213
By solving, denominator = 2−8 = -4
Now applying the expression above,
(−4)19÷7×2=(4−19)=−1145 .
Hence the value of 121×132−621321+531÷131×541−521÷7×2 is -1145 .