Question

The average of four consecutive numbers A, B, C, D is 55.5. Then, the product BC =
1) 2580
2) 3060
3) 3080
4) 3660

Answer 1

average of four consecutive numbers a b c d is 55.5 then the product BC is 3080

Answer 2

Answer is 3080

Step by step Explanation:

We have given that,  

Average of four consecutive numbers A, B, C & D is 55.5  

That means consecutive numbers are ,  

A+B+C+D/4= 55.5   ……………….1)

Let a be 1st letter a then  

A= a

B=a+1

C=a+2

D=a+3

Then, Putting the values in 1)

(4a+6)/4=55.5

2a+3= 111

2a= 111-3

2a= 108

A= 54

Then numbers are  

54, 55, 56 & 57

A=54

B=55

C=56

D=57

Product of BC

= 55×56