A batsman is out for 10 runs and this decreases his average by two. If the batsman had scored 19 more runs his average would be decreased by one. Find the total runs scored by that batsman before this innings? ( ADP COMPANY)

A batsman is out for 10 runs and this decreases his average by two. If

1.	A batsman is out for 10 runs and this decreases his average by two. If the batsman had scored 19 more runs his average would be decreased by one. Find the total runs scored by that batsman before this innings? ( ADP COMPANY)
A.	864
B.	874
C.	900
D.	893
Answer» B. 874