If ‘-‘ means ‘division’, ‘+’ means ‘multiplication’, ‘×’ means ‘addition’ and ‘÷’ means ‘subtraction’, which of the following equations is correct?

Question

Question

This question was previously asked in

SSC GD Constable (2022) Official Paper (Held On : 27 Jan 2023 Shift 3)

Answer 1

1. 10 - 2 + 3 ÷ 9 × 2 = 8

⇒ 10 ÷ 2 × 3 - 9 + 2 = 8

⇒ 5 × 3 - 9 + 2 = 8

⇒ 15 - 9 + 2 = 8

⇒ 17 - 9 = 8

⇒ 8 = 8

2. 10 + 3 - 2 × 9 ÷ 2 = 21

⇒ 10 × 3 ÷ 2 + 9 - 2 = 21

⇒ 10 × 1.5 + 9 - 2 = 21

⇒ 15 + 9 - 2 = 21

⇒ 24 - 2 = 21

⇒ 22 ≠ 21

3. 20 + 6 - 4 × 9 ÷ 6 = 32

⇒ 20 × 6 ÷ 4 + 9 - 6 = 32

⇒ 20 × 1.5 + 9 - 6 = 32

⇒ 30 + 9 - 6 = 32

⇒ 39 - 6 = 32

⇒ 33 ≠ 32

4. 20 ÷ 9 × 9 - 4 + 6 = 33

⇒ 20 - 9 + 9 ÷ 4 × 6 = 33

⇒ 20 - 9 + 2.25 × 6 = 33

⇒ 20 - 9 + 13.5 = 33

⇒ 33.5 - 9 = 33

⇒ 24.5 ≠ 33

Hence, ‘10 - 2 + 3 ÷ 9 × 2 = 8’ is the correct answer.

Symbols	-	+	×	÷
Meaning	÷	×	+	-