Which two signs and two numbers should be interchanged to make the following equation correct?
784 ÷ 6 × 9 - 30 + 14 = 528
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 14 and 6, + and -.
Given equation: 784 ÷ 6 × 9 - 30 + 14 = 528
After interchanging the expression becomes:
(784 ÷ 14) × 9 + 30 - 6 = 528
⇒ (56 × 9) + 30 - 6 = 528
⇒ (504 + 30) - 6 = 528
⇒ 534 - 6 = 528
⇒ 528 = 528