Question

Multiple Choice Questions (MCQs)
Which of the following expression are equal to
-20 ?
I -4*5
II –32 + 10 - (-2)
III -6 * 2 - [–2 x 4]
IV 5 * (-2) + (-3) 4
(a) I only
(b) I and II
(C) I, II and III (d) I, II, III and IV​

Answer 1

I -4×5=-20

II -32 + 10 - (- 2)

= -32 +10 + 2

= -32 + 12

= -20

III -6 × 2 - (-2 × 4)

= -12 - (-8)

= -12 + 8

= -4

IV 5 × -2 + -3 ×4

= -10 + -12

= -10 -12

= -22

So option B) I and II is correct