The two whole numbers m and n satisfy m+n=20 and \displaystyle\frac1m+\frac1n=\frac{5}{24}.The product mn is equal to
Answer Choices
A. 72
B. 36
C. 48
D. 96
E. 24
The two whole numbers m and n satisfy m+n=20 and \displaystyle\frac1m+\frac1n=\frac{5}{24}.The product mn is equal to
Answer Choices
A. 72
B. 36
C. 48
D. 96
E. 24