Question
PSLE
Shiyun had two strings of the same length. She cut the first string into equal parts of length 30 cm and to each part she tied 2 black paper cranes. After that, she cut the second string into equal parts of length 35 cm and to each part she tied 5 brown paper cranes. When she finished tying, she counted that there were 80 more brown paper cranes than black paper cranes. How many paper cranes were there altogether?
5 m

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PSLE
Shiyun had two strings of the same length. She cut the first string into equal parts of length 30 cm and to each part she tied 2 black paper cranes. After that, she cut the second string into equal parts of length 35 cm and to each part she tied 5 brown paper cranes. When she finished tying, she counted that there were 80 more brown paper cranes than black paper cranes. How many paper cranes were there altogether?