If '+' means '-', '-' means 'x', 'x' means '÷' and '÷' means '+', then what will come in place of the question mark (?) in the following equation?

502 ÷ 78 + 2 - 258 x 2 = ?

124

322

560

APEDIA

NTPC Graduate Tier 1

2025 • 05 Jun, 2025 • Shift-2

If '+' means '-', '-' means 'x', 'x' means '÷' and '÷' means '+', then what will come in place of the question mark (?) in the following equation?

502 ÷ 78 + 2 - 258 x 2 = ?

Correct Answer

322

Operator Substitution: First, strictly decode the sequence using the provided translation matrix. The original equation (502 ÷ 78 + 2 - 258 x 2) transforms mat......

💡 Analysis & Explanation

Operator Substitution ▼

First, strictly decode the sequence using the provided translation matrix. The original equation (502 ÷ 78 + 2 - 258 x 2) transforms mathematically into (502 + 78 - 2 x 258 ÷ 2).

Hierarchy Execution (Division) ▼

Applying BODMAS rules, initiate with the division block. Calculate 258 ÷ 2, which gives 129.

Hierarchy Execution (Multiplication) ▼

Move to the multiplication sector. Multiply 2 by the previous result: 2 x 129 = 258.

Linear Resolution ▼

Now evaluate the remaining linear string from left to right: 502 + 78 - 258. Adding gives 580, and subtracting 258 leaves exactly 322.

Conclusion ▼

The mathematical sequence logically simplifies to the value of 322.

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If '+' means '-', '-' means 'x', 'x' means '÷' and '÷' means '+', then what will come in place of the question mark (?) in the following equation?502 ÷ 78 + 2 - 258 x 2 = ?

If '+' means '-', '-' means 'x', 'x' means '÷' and '÷' means '+', then what will come in place of the question mark (?) in the following equation?

502 ÷ 78 + 2 - 258 x 2 = ?