data sufficiency

Q 1: what is the number of male commuter b/w station P & Q?

1) Exactly 60% of all the commuter b/w P & Q are male
2) 50 female commuters constitute 20% of all the commuters B/w P & Q.

A)Statement (1) alone is sufficient,
B) statement (2) alone is sufficient.
C) Both (1)(2) together is sufficient to answer the quetion.
D) Each Statement alone is sufficient to answer.
e) statement (1)(2) together is not sufficient to answer the quetion.

i feel answer is : 'D' ( am i correct?)

Q2: Raymond's income was 10% more in 1999 than is was in 1998. what was his income in 1999?

1) Raymond's income during 1999 the first half of 1998 was $10,000 & his income during the second half was 10% more than his income in the first half

2) Raymond's income during 1999 was $2100 more than this income during 1998.

A)Statement (1) alone is sufficient,
B) statement (2) alone is sufficient.
C) Both (1)(2) together is sufficient to answer the quetion.
D) Each Statement alone is sufficient to answer.
e) statement (1)(2) together is not sufficient to answer the quetion.

i feel answer : 'B' (am i correct?)

Q3: a certain sales persons; weekly salary is equal to fixed base salary plus a commision that is directly proportional to the nos of item sold during the week. if 65 items are sold this week, what will be the salesperson's salary for this week?.

1) Last week 45 items were sold & the salesperson's salary was 390.
2) last week, the fixxed base salary & the commission paod were in the ratio 10:3.

A)Statement (1) alone is sufficient,
B) statement (2) alone is sufficient.
C) Both (1)(2) together is sufficient to answer the quetion.
D) Each Statement alone is sufficient to answer.
e) statement (1)(2) together is not sufficient to answer the question.

i feel answer: E (am i correct?)