Data Sufficiency

Q30:
Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy?
(1) She bought $4.40 worth of stamps.
(2) She bought an equal number of $0.15 stamps and $0.29 stamps.
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
Answer

Should be D

Suppose he bought x 0.15 stmaps and y 0.29 stamps

Stmt 1 - 0.15x + 0.29y = 4.40. At the same time x and y should be integer. true only for x=y=10. SUFF

Stmt 2 - x=y. So it can be solved for x=y=10. SUFF

How is statement 2 also suff by itself?? Please explain.

IMO ans should be A

coz .15x + .29y =4.40

only possible for x =y=10 SUFF

stmt 2: equal nos can be any thing i.e x=y= 1...anything

coz we dont have the total so here it can be anything.

NOT SUFF

Guys from stmt - 1 here, we are being able to find out the answer (somehow we have to use back track to find out the answer from only stmt - 1) but is it not better for us that both the options given act together. Then we can easily find out the correct answer. So I thought C will be the best answer but here it works in different way!

The OA is A.
We cannot find the answer using second option

My bad... I overlooked and assumed that $4.40 is given in the question instead of stmt 1....

Would be A