Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Logical and Analytical Reasoning

Topic

Mathematical Operations

Question:

If '-' means '+', '+' means '×', '×' means '-', then which of the following is not correct? 

45 + 9 - 3 × 15 ÷ 2

Options:

22+7-3×9=148

33×5-10+20=228

7+28-3×52=127

44-9+6×11=87

Correct Answer:

7+28-3×52=127

Explanation:

For option (1)

22+7-3×9= 22×7+3-9

               = 154+3-9

               =157-9

               = 148 = RHS

For option (2)

33×5-10+20= 33-5+10×20

                   = 33-5+200

                   = 233-5

                   =228= RHS

For option (3)

7+28-3×52= 7×28+3-52

                 = 196+3-52

                 = 199-52

                 = 147 ≠ RHS

For option (4)

44-9+6×11= 44+9×6-11

                 = 44+54-11

                 = 98-11

                 = 87 = RHS