Question
PSLE
Gwen had two strings of the same length. She cut the first string into equal parts of length 25 cm and to each part she tied 2 blue cartoon cutouts. After that, she cut the second string into equal parts of length 45 cm and to each part she tied 5 black cartoon cutouts. When she finished tying, she counted that there were 21 more black cartoon cutouts than blue cartoon cutouts. How many cartoon cutouts were there altogether?
5 m

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PSLE
Gwen had two strings of the same length. She cut the first string into equal parts of length 25 cm and to each part she tied 2 blue cartoon cutouts. After that, she cut the second string into equal parts of length 45 cm and to each part she tied 5 black cartoon cutouts. When she finished tying, she counted that there were 21 more black cartoon cutouts than blue cartoon cutouts. How many cartoon cutouts were there altogether?