Question

Which two signs should be interchanged to make the following equation correct?

4 ÷ 6 + 9 - 48 × 8 = 27

1. + and -
2. + and ×
3. ÷ and +
4. ÷ and ×

Answer 1

Correct Answer - Option 4 : ÷ and ×

1) + and –

Given expression: 4 ÷ 6 + 9 - 48 × 8 = 27

After replacing the symbols, we get:

4 ÷ 6 – 9 + 48 × 8 = 27

=> 0.67 – 9 + 384 = 27

=> 384.67 – 9 = 27

=> 375.67 ≠ 27

2) + and ×

Given expression: 4 ÷ 6 + 9 - 48 × 8 = 27

After replacing the symbols, we get:

4 ÷ 6 × 9 - 48 + 8 = 27

=> 6 – 48 + 8 = 27

=> 14 – 48 = 27

=> -34 ≠ 27

3) ÷ and +

Given expression: 4 ÷ 6 + 9 - 48 × 8 = 27

After replacing the symbols, we get:

4 + 6 ÷ 9 - 48 × 8 = 27

=> 4 + 0.67 – 384 = 27

=> 4.67 – 384 = 27

=> -379.33 ≠ 27

4) ÷ and ×

Given expression: 4 ÷ 6 + 9 - 48 × 8 = 27

After replacing the symbols, we get:

4 × 6 + 9 - 48 ÷ 8 = 27

=> 24 + 9 – 6 = 27

=> 33 – 6 = 27

=> 27 = 27

Hence, ‘÷ and ×’ is the correct answer.