The table given below shows the number of bottles of type B1, B2, B3, B4 and B5 manufactured by 2 companies P and Q.
R1 = Average number of B1 bottles manufactured by P and Q.
R2 = Average number of B4 bottles manufactured by P and Q.
What is the value of R2 - R1?
Show answer & explanation
Correct answer: A
Explanation
Has been given :
P → B1 = 100, B4 = 60
Q → B1 = 20, B4 = 140
According to the formula:
Average = (Sum / 2)
R1 = (100 + 20) / 2 = 120 / 2 = 60
R2 = (60 + 140) / 2 = 200 / 2 = 100
R2 − R1 = 100 − 60 = 40