If 'A' stands for 'subtraction', 'B' stands for 'multiplication', 'C' stands for 'addition', and 'D' stands for 'division', then what is the
value ofthe following expression?
27 A 8 B 5 C (11 C 3) B 5 C 36 D 6
This questions was previously asked in
SSC CGL 7th March 2020 Shift-1
Explanation:
Alright, let's sort this out step by step, just like how you'd work through a puzzle with a friend.
- Each letter is a different operation:
- A = subtraction (-)
- B = multiplication (×)
- C = addition (+)
- D = division (÷)
Here’s the expression:
27 A 8 B 5 C (11 C 3) B 5 C 36 D 6
Let’s translate that:
27 - 8 × 5 + (11 + 3) × 5 + 36 ÷ 6
Now, let’s break it down using BODMAS (order of operations):
1. Parentheses first: (11 + 3) = 14
Now it looks like:
27 - 8 × 5 + 14 × 5 + 36 ÷ 6
2. Multiplication and Division:
- 8 × 5 = 40
- 14 × 5 = 70
- 36 ÷ 6 = 6
Plug those in:
27 - 40 + 70 + 6
3. Now, go left to right with addition and subtraction:
- 27 - 40 = -13
- -13 + 70 = 57
- 57 + 6 = 63
So the final answer is 63.
- Option 1: 24
- Option 2: 20
- Option 3: 63
- Option 4: 60
So you nailed it: .
That’s how it all adds up!
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