So 1/2 is 5/10 and 2/5 is 4/10 common denonominator is 10 ( i think )
Answer:
GFD and jik...a pair of angles on the outer side
Mmmmbrntnrjneuneunre unenriched
The answer is D, 10. 4 years ago she was 6, so William must have been 1 (1/6 of 6). In 6 years time she will be 16 (10+[4+6 years]).