# If the average (arithmetic mean) of x and y is 60 and the average (arithmetic mean) of y and z is 80, what is the value of z - x?

A. 70

B. 40

C. 20

D. 10

Related Questions on Quantitative MCQs paper 2

**Consider the sequence 1, 2, 3, 1, 2, 3, 1, 2, 3,…….. What is the sum of the first 100 terms?**

A. 100

B. 180

C. 198

D. 199

E. 200

A. 102

B. 103

C. 199

D. 201

E. 202