Lory has 49 marbles.
Solution:
Number of marbles Lory had before her birthday = 56
Number of marbles Lory got on her birthday = 15
On adding both the above values we get the total number of marbles.
Total number of marbles Lory has = [tex]\bold{56 + 15 = 71}[/tex]
Number of marbles Lory gave away = 22
On subtracting the number of marbles given by Lory from the total number of marbles we get the number of marbles left with Lory
i.e, Number of marbles left with lory = [tex]\bold{71 - 22 = 49}[/tex]
Thus, number of marbles left is 49.
