Answer:
Sandhya performed better.
Explanation:
You can either or simplify the fractions:
and
to simpler forms like
and
from there you can make the
and multiply it by
to get
and then from there you can see Sandya performed better.
OR
You can divide 630 by 900 and 650 by 1300
630/900 gives you 70
and
650/1300 gives you 50
Clearly, once again Sandhya performed better.