Average ????

if the average (arithmetic mean) of q, r, s, and t is 10 what is the average of s-r, 3r + t , 10 -r and 6+ q ???|||(q + r + s + t)/4 = 10 or q + r + s + t = 40


............


[ (s - r) + (3r + t) + (10 - r) + (6 + q) ] / 4


[ s - r + 3r + t - r + q + 16 ] / 4


[ s + r + t + q + 16 ] / 4


[ 40 + 16 ] / 4


[ 56 ] / 4


14|||Given: (q+r+s+t)/4 = 10





(s-r + 3r+ t + 10 -r + 6 + q)/4


= (q + r + s+ t + 16)/4


= 10 + 4 (by substituting for (q +r + s+t)/4 = 10)


=14