[EconJames]

1. Given N is a positive odd integer. If the number in the tens digit is double the digit at the units place then the value of N?
A. n>90
B. 30<N
C. N>50
D. 30<N<50
2. Given a bag which contains red and black marbles and red marbles are 5 times black marbles. If we pick 5 marbles randomly, without replacement, then
Col A: Probability of getting red marbles
col b: Probability of getting black marbles


Thanks for your help!