Bunuel wrote:
A rectangular solid has a surface area of 94 square inches. What is its volume?
(1) The surface area of one side of the rectangular solid is 12.
(2) The surface area of one side of the rectangular solid is 20.
2(lb+BH+lh)=94
I.e. lb+BH+lh=47
Statement 1: lb=12
Not sufficient
Statement 2: bh=20
Not sufficient
Combining
lh= 47-12-20=15
Only possibility of l,b,h are 3,4,5
Hence volume = 60
Sufficient
Answer Option C
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