Question

There are 50 puzzles in Maggie's puzzle book. Maggie already finished 30% of the puzzles. How many puzzles does she have left to do??

Answer 1

35

Explanation:

30% of 50 =15

15 of them have been completed

hence to get the amount she has to do is :

50 - 15 = 35

Answer 2

You know that;

Maggie has finished 30% of 50

50*(30/100)
=15 puzzles done

Left to do: 50-15=35

Hope I helped :)