Question

The value of the expression 1-2+3-4+5-6+………+29-30 is :

(a) (-14) (b) (-15) (c) 0 (d) 15​

Answer 1

Answer:

option c) 0

Explanation:

The value of the expression 1-2+3-4+5-6+………+29-30 is :

answer is "0"

Answer 2

Answer:

option (b) (-15)

this same question is in my maths book the right answer is (b) (-15)