| Question | Which two numbers need to be interchanged to make the following equation correct? 7 + 56 ÷ 8 × 2 – 13 = 11 | |
| Type | multiple_choice | |
| Option | 7 and 2 | incorrect |
| Option | 8 and 2 | incorrect |
| Option | 7 and 13 | incorrect |
| Option | 7 and 8 | correct |
| Solution | 7 and 8 Given equation: 7 + 56 ÷ 8 × 2 – 13 = 11 After interchanging the numbers in given equation the equation formed is as follows: 8 + 56 ÷ 7 × 2 – 13 = 11 ⇒ 8 + 56 ÷ 7 × 2 – 13 = 11 ⇒ 8 + 8 × 2 – 13 = 11 ⇒ 8 + 16 – 13 = 11 ⇒ 24 – 13 = 11 ⇒ 11 = 11 LHS = RHS Hence, the correct answer is “7 and 8”. | |
