Question

if the average of X + 2 X + 5 x + 8 x + 11 x + 14 is 20 then find the average of first three numbers

Answer 1

Answer:

Step-by-step explanation:

The answer is -4/5

Answer 2

X+2X+5X+8+X+11X+14=20

20X+22=20

20X=-2

X=-1/10

THE AVERAGE OF FIRST THREE NO.

-1/10+2×-1/10+5×-1/10

-1/10-1/5-1/2

THE ANSWER IS -4/5