Question

If + stands for division, - stands for equal to, x stands for addition, $÷$ stands for greater than, = stands for less than, > stands for 'multiplication' and < stands for subtraction, then which of the following options is correct?

• A. 5 x 2 < 1 - 3 < 4 x 1
• B. 5 > 2 x 1 - 3 > 4 < 1
• C. 5 < 2 x 1 $÷$ 3 > 4 x 1
• D. 5 < 2 x 1 = 3 + 3 > 1

Answer 1

The correct option is B 5 > 2 x 1 - 3 > 4 < 1

A. After changing signs,
5 x 2 < 1 - 3 < 4 x 1 becomes 5 + 2 - 1 = 3 - 4 + 1 => 6 = 0 (incorrect)
B. After changing signs,
5 > 2 x 1 - 3 > 4 < 1 becomes 5 x 2 + 1 = 3 x 4 - 1 = > 11 = 11(Correct)
C. After changing signs
5 < 2 x 1 $÷$ 3 > 4 x 1 becomes 5 - 2 + 1 > 3 x 4 + 1 => 4 > 13 (incorrect)
D. After changing signs
5 < 2 x 1 = 3 + 3 > 1 becomes 5 - 2 + 1 < 3 $÷$ 3 x 1 = 4 < 1 (incorrect).