word problem

[sud21]

In a certain car dealer' shop, more than 10 cars install fog lamp, and 40% of the cars with the fog lamp also install W. Is the number of the cars with fog lamp more or less than the number of the cars with W?
1). 80% of the cars with W do not install fog lamp.
2). A number of 52 cars installed either fog lamp or W.

[sam2304]

In a certain car dealer' shop, more than 10 cars install fog lamp, and 40% of the cars with the fog lamp also install W. Is the number of the cars with fog lamp more or less than the number of the cars with W?
1). 80% of the cars with W do not install fog lamp.
2). A number of 52 cars installed either fog lamp or W.

W - no of cars with W installed
F - no of cars with fog lamps installed.

1.SUFF - see image - self explanatory.

2. w + f - 0.4f = 52
No other info is given to determine which is greater. Hence INSUFF

IMO A.