Here's the question bank on all the logical reasoning topics.
Which two signs should be interchanged to make the following equation correct?12 - 4 + 8 × 3 ÷ 7 = 20
Given equation: 12 - 4 + 8 × 3 ÷ 7 = 20Concept of BODMAS will be used in this question-1) ×, +On interchanging, 12 - 4 × 8 + 3 ÷ 7 = 20Solve using BODMAS12 - 4 × 8 + 3 ÷ 7= 12 - 4 × 8 + 0.43= 12 - 32 + 0.43 = 12.43 - 32 = - 19.57 ? 202) +, -On interchanging, 12 + 4 - 8 × 3 ÷ 7 = 20Solve using BODMAS12 + 4 - 8 × 3 ÷ 7= 12 + 4 - 8 × 0.43= 12 + 4 - 3.44 = 16 - 3.44 = 12.56 ? 203) ÷, -On interchanging, 12 ÷ 4 + 8 × 3 - 7 = 20Solve using BODMAS12 ÷ 4 + 8 × 3 - 7= 3 + 8 × 3 - 7= 3 + 24 - 7 = 27 - 7 = 20 = 204) ÷, ×On interchanging, 12 - 4 + 8 ÷ 3 × 7 = 20Solve using BODMAS12 - 4 + 8 ÷ 3 × 7= 12 - 4 + 2.67 × 7= 12 - 4 + 18.69 = 30.69 - 4 = 26.69 ? 20Hence, 'option 3' is the correct answer.
Scan QR code to download our App for
more exam-oriented questions
.png)
OR
To get link to download app