Which of the following pairs of numbers and signs, when their positions are interchanged, will correctly solve the given mathematical equation?
17 × 15 + 3 – 11 ÷ 3 = 45
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 15 and 11, + and ×.
| Understanding |
|
Option 1 (15 and 11, + and ×) Equation is 17 × 15 + 3 – 11 ÷ 3 = 45 After positions are interchanged, we have 17 + 11 x 3 - 15 ÷ 3 = 45 ⇒ 17 + 33 - 5 = 45 ⇒ 50 - 5 = 45 ⇒ 45 = 45 Hence, option 1 is the correct answer.
|