Which two numbers should be interchanged to make the given equation correct?
25 × 7 + 20 – 40 ÷ 4 = 210
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 20 and 40.
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Given equation: 25 × 7 + 20 – 40 ÷ 4 = 210 Let us check all the options: Option 1: 20 and 40 The expression becomes: = 25 × 7 + 40 – 20 ÷ 4 = 25 × 7 + 40 – 5 = 175 + 40 - 5 = 210 Hence, 210 is equal to 210. As we have found our answer, we need not check the other options. Hence, option 1 is the correct answer. |