Q1. If ‘<’ means ‘minus’, ‘>’ means ‘plus’, ‘=’ means ‘multiplied by’ and ‘$’ means ‘divided by’, then what would be the value of 31 > 81 $ 9 < 7?
A 41
B 31
C 33 Correct
D 37
Explanation
Replace each coded sign with its stated mathematical operation. The expression 31 > 81 $ 9 < 7 becomes 31 + 81 ÷ 9 - 7. Following the usual order of operations, division is done first: 81 ÷ 9 = 9. The expression then becomes 31 + 9 - 7, which equals 33. The value 41 would result from adding without the final subtraction. The values 31 and 37 do not follow the correct replacement and operation order.