Question

What is the value of this expression

210/7-18+4*6-20
A)112
B)76
C)28
D)16

Answer 1

D) 16

`(210)/(7) -18+4*6-20`
=30-18+24-20
=30+24-(18+20)
=54-38
=16

Answer 2

Following the MDAS rule, where it is necessary to do multiplication or division processes first (whichever of the 2 is encounter first in the equation) before proceeding to addition and subtraction, the expression can be solved, and is done as follows:

210/7 - 18 + 4*6 - 20

Doing division and multiplication first:
30 - 18 + 24 - 20

Simplifying:
16

Therefore the answer among the choices is D.