PM Response:
Let p1 be the price of 1 donut
Let d be the number of donuts
Let p2 be the price 1 cupcake
Let c be the number of cupcakes
We need to find d
Given : p1*d + p2*c = 6 $ or 600 cents
Stmt I
2* p1 = 3*p2-10
3*p2-2*p1= 10
let say p2=4 p1=1
For 4 cents we can buy 100 cupcakes= 400 cents
For 1 cent we can 200 donuts = 200 cents
400+200=600 cents
For 4 cents we can buy 50 cupcakes= 200 cents
For 1 cent we can 400 donuts = 400 cents
400+200=600 cents
INSUFF
Stmt II
p1+p2/2 = 35
p1+p2 = 70
p1=40 p2=30
Just like above many different combinations for d and c possible.
INSUFF
Together:
3*p2-2*p1= 10
p1+p2 = 70
We can obtain p1 and p2 but still many different combinations for d and c possible.
Choose E
Hopt this helps! I have tried to explain it as detailed as possible but let me know if u still hv questions.
Good luck.
Regards,
CR
