In an imaginary mathematical system, symbol ‘-‘ stands for addition, symbol ‘+’ stands for division, symbol '\times' stands for subtraction, and symbol '\div' stands for multiplication. What is the value of the following expression?
144\times 35 + 7 \div 12 - 3

Options:
a) 87
b) 95
c) 107
d) 43

Solution:

144\times 35 + 7 \div 12 - 3
Change symbol = per Question
144 - 35 \div 7\times 12 + 13
144 - 5 \times 12 + 3
144 - 60 + 3
147 – 60 = 87

Answer: a) 87

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