Question : Directions: Select the correct equation after interchanging the operators – and × and the numbers 4 and 3.

Option 1: 9 – 4 × 3 = 21

Option 2: 4 – 3 × 9 = 3

Option 3: 3 × 4 – 9 = 9

Option 4: 3 × 9 – 4 = 4

Question : Directions: In the following question, correct the equation by interchanging any two numbers.
5 + 3 ÷ 6 × 9 – 2 = 21

Option 1: 5 and 9

Option 2: 3 and 6

Option 3: 6 and 9

Option 4: 5 and 3

Question : Directions: In the following question, correct the equation by interchanging two signs.
43 + 9 – 6 ÷ 3 × 8 = 50

Option 1: ÷ and ×

Option 2: + and ÷

Option 3: – and +

Option 4: – and ×

Question : Directions: In a certain code language, RIVER is written as 10–3–5–2–10 then how will PETROL be written in the same code language?

Option 1: 13–5–8–9–4–15

Option 2: 12–2–8–10–13–15

Option 3: 11–2–7–10–13–16

Option 4: 12–2–8–10–4–16

Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation.
12 * 3 * 4 = 6 * 8 * 8

Option 1: +, ×, –, ×

Option 2: ×, +, –, ×

Option 3: ×, +, ×, –

Option 4: ×, –, ×, +