Grade 2
At the end of the year, the class teacher bought a mug and sweets for her students. One mug cost 15 CZK, a chocolate bar cost 12 CZK, and a wafer cost 9 CZK. The boys got a mug and chocolate, the girls got a mug and a wafer. How many crowns did the teacher pay if there were x boys and y girls in the class? Choose the correct expression:
a) 36xy
b) 24x + 27y
c) 27x + 24y
a) 36xy
b) 24x + 27y
c) 27x + 24y
Correct answer:
You need to know the following knowledge to solve this word math problem:
algebrabasic functionsUnits of physical quantitiesGrade of the word problem
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