If '@' stands for '-', '#' stands for '+', '$' stands for '*' and '*' stands…
2025
If '@' stands for '-', '#' stands for '+', '$' stands for '*' and '*' stands for '/', then which of the following options becomes correct ?
- A.
3@18#6$4 * 13 = 13
- B.
3@18#6$4 * 13 = 13.625
- C.
3@18#6$4 * 13 = −13.154
- D.
3@18#6$4 * 13 = 4
Attempted by 20 students.
Show answer & explanation
Correct answer: C
To determine which option is correct for the expression 3 @ 18 # 6 $ 4 * 13, we first perform the required symbol substitutions and then evaluate the expression using the BODMAS order of operations (Brackets, Orders, Division, Multiplication, Addition, Subtraction).
Step-by-Step Analysis
Substitutions:
@ = -
# = +
$ = * (Multiplication)
* = / (Division)
Expression: 3 - 18 + 6 * 4 / 13
Order of Operations (BODMAS):
Multiplication and Division (from left to right):
6 * 4 = 24
24 / 13 ≈ 1.846
Addition and Subtraction (from left to right):
3 - 18 = -15
-15 + 1.846 = -13.154