If ‘−‘ means ‘division’, ‘+’ means ‘multiplication’, ‘×’ means ‘addition’, and ‘÷’ means ‘subtraction’, which of the following equations is correct?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 20 − 4 + 6 ÷ 9 × 4 = 25.
Given directions: ‘−‘ means ‘division’, ‘+’ means ‘multiplication’, ‘×’ means ‘addition’, and ‘÷’ means ‘subtraction’
Option 1: 20 − 4 + 6 ÷ 9 × 4 = 25
After interchanging the expression becomes:
= 20 ÷ 4 × 6 - 9 + 4 = 25
= 5 × 6 - 9 + 4
= 30 - 9 + 4
= 25 = 25
As we have found our answer, there is no need to check further options.
Hence, 20 − 4 + 6 ÷ 9 × 4 = 25 is the correct answer.