The correct option is A 913
The ratio of yellow sweets to pink sweets is 4 : 9, that means there are 4 yellow sweets for every 9 pink sweets.
Let the number of yellow sweets is 4, then the number of pink sweets would be 9.
Total number of sweets =Number of yellow sweets+Number of pink sweets
=4+9=13
Fraction of pink sweets out of the total sweets
=Number of pink sweetsTotal number of sweets
=913