Question

If two-sevenths of 14 apples are rotten, then number of good apples are ______.

Answer 1

Two-sevenths of 14 = $\frac{2}{7}$ of 14 $=\frac{2}{7}\times 14=2\times 2=4$

Number of good apples $=14-4=10$
Hence, out of 14 apples, only 10 apples are good apples.