Question : Directions: By interchanging which two numbers the equation will be correct. 9 × 3 ÷ 6 + 4 – 8 = 1
Option 1: 8 and 9
Option 2: 3 and 6
Option 3: 3 and 4
Option 4: 6 and 8
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Correct Answer: 3 and 4
Solution : Given: 9 × 3 ÷ 6 + 4 – 8 = 1
Replace the given numbers in the options one by one with the original numbers in the given equation. Let's check each option – First option: 8 and 9 9 × 3 ÷ 6 + 4 – 8 = 1 ⇒ 8 × 3 ÷ 6 + 4 – 9 ⇒ 8 × 0.5 + 4 – 9 ⇒ 4 + 4 – 9 = 1 ⇒ – 1 ≠ 1 Second option: 3 and 6 9 × 3 ÷ 6 + 4 – 8 = 1 ⇒ 9 × 6 ÷ 3 + 4 – 8 ⇒ 9 × 2 + 4 – 8 ⇒ 18 + 4 – 8 ⇒ 14 ≠ 1 Third option: 3 and 4 9 × 3 ÷ 6 + 4 – 8 = 1 ⇒ 9 × 4 ÷ 6 + 3 – 8 ⇒ 6 + 3 – 8 ⇒ 1 = 1 Fourth option: 6 and 8 9 × 3 ÷ 6 + 4 – 8 = 1 ⇒ 9 × 3 ÷ 8 + 4 – 6 ⇒ 9 × 0.375 + 4 – 6 ⇒ 1.375 ≠ 1
So, only the third option satisfies the equation. Hence, the third option is correct.
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Question : Directions: After interchanging two signs and two numbers, the value of the given equation will be 44. 6 × 7 + 9 + 3 – 8
Option 1: + and ÷, 7 and 8
Option 2: + and –, 6 and 8
Option 3: × and +, 8 and 6
Option 4: × and ÷, 9 and 6
Question : Directions: By interchanging two numbers the equation will be correct. 3 × 9 – 4 ÷ 2 + 6 = 28
Option 1: 9 and 2
Option 2: 6 and 4
Option 3: 3 and 6
Option 4: 9 and 6
Question : Directions: By Interchanging which two signs the equation will be correct? 6 – 10 × 8 ÷ 5 + 7 = 15
Option 1: + and –
Option 2: ÷ and –
Option 3: + and ÷
Option 4: × and ÷
Question : Directions: By interchanging which two signs the equation will be correct? 15 + 5 ÷ 2 – 9 × 3 = 22
Option 2: × and ÷
Option 3: × and –
Option 4: ÷ and +
Question : Directions: By interchanging the given two numbers which of the following equations will be correct? 8 and 4
Option 1: 4 + 8 × 2 – 3 = 20
Option 2: 4 ÷ 2 + 8 × 3 = 16
Option 3: 4 + 3 × 8 – 2 = 21
Option 4: 8 – 4 + 6 = 9
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