Q: In a row of thirty boys, R is fourth from the right end and W is tenth from the left end . How many boys are there between R and W?

Q: In a row of thirty boys, R is fourth from the right end and W is te

1.	Q: In a row of thirty boys, R is fourth from the right end and W is tenth from the left end . How many boys are there between R and W?
A.	15
B.	16
C.	17
D.	can't be determined
Answer» C. 17