Section 3: Attention To Detail No.
Accenture aptitude question, verified with a worked answer. Free to practise - no sign-up.
Section 3: Attention To Detail
No. of Questions: 11
Duration: 11 minutes
Directions for Questions 41-45
Follow the directions given below to answer the questions that follow.
Your answer for each question below would be:
Show answer & explanation
The problem requires substituting mathematical operators based on a given key and then solving the resulting expression using the order of operations (BODMAS/PEMDAS).
Step-by-step Derivation:
Step 1: Identify the operator substitutions:
- '/' becomes '-'
- '*' becomes '/'
- '+' becomes '*'
- '-' becomes '+'
Step 2: Rewrite the original expression '9 / 8 * 7 + 5 - 10' using the substitutions:
- 9 / 8 becomes 9 - 8
- 8 * 7 becomes 8 / 7
- 7 + 5 becomes 7 * 5
- 5 - 10 becomes 5 + 10
Wait, let's apply the substitutions carefully to the whole string:
Original: 9 / 8 * 7 + 5 - 10
Substituted: 9 - 8 / 7 * 5 + 10
Step 3: Solve using BODMAS (Division and Multiplication first, from left to right):
- Division: 8 / 7 ≈ 1.142857
- Multiplication: 1.142857 * 5 ≈ 5.714285
Step 4: Perform Addition and Subtraction:
- 9 - 5.714285 + 10
- 3.285715 + 10 = 13.285715
Step 5: Rounding to one decimal place as per the options provided:
- 13.2857... rounds to 13.3.