if x*y = 2x + 5y, then how much 3*5
is greater than 5*3?
(A) 2
(B) 4
(C) 6
(D) 8
Answers
Answered by
0
Answer:
hijsnsjskskaoqodoxkskmsmdkdkd
Answered by
0
Answer:
Observations= X,X+2,X+4,X+6,X+8
No of observations=5
Mean of observations= 13
Sum of observations= Mean of observations × No of observations
= 13 × 5 = 65.
Sum of observations in terms of X = X+2+X+4+X+6+X+8 = 5X+20
According to the problem
5X + 20 = 65
5X = 65 — 20
5X = 45
X = 9
The value of X is 9.
Similar questions