Evaluate: 9 + 3 + 7 + 2 − (9 + 1).
Aptitude
Numbers
Difficulty: Easy
Choose an option
-
A11
-
B4
-
C17
-
D15
-
ENone of these
Answer
Correct Answer: 11
Explanation
Given data
- Expression: 9 + 3 + 7 + 2 − (9 + 1)
Concept / Approach
- Apply bracket first (BODMAS/PEMDAS), then perform addition and subtraction left to right.
Step-by-step calculation
Inside brackets: (9 + 1) = 10Outside sum: 9 + 3 + 7 + 2 = 21Result: 21 − 10 = 11
Common pitfalls
- Dropping the parentheses or mis-adding 9 + 3 + 7 + 2.
Final Answer
11