Question
PSLE
Betty had two strings of the same length. She cut the first string into equal parts of length 80 cm and to each part she tied 2 brown stars. After that, she cut the second string into equal parts of length 90 cm and to each part she tied 4 green stars. When she finished tying, she counted that there were 42 more green stars than brown stars. How many stars were there altogether?
5 m

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PSLE
Betty had two strings of the same length. She cut the first string into equal parts of length 80 cm and to each part she tied 2 brown stars. After that, she cut the second string into equal parts of length 90 cm and to each part she tied 4 green stars. When she finished tying, she counted that there were 42 more green stars than brown stars. How many stars were there altogether?