Walnut pair mathematics

270 yuan, Chen Xiao, bought 5 Jin of jujube and walnut, and the price of 4 Jin of walnut is exactly the price of 5 Jin of jujube. How much is a catty of red dates and walnuts?

Walnut 270 degrees (5+5×4/5)

=270÷(5+4)

=270÷9

=30 yuan

Jujube 30×4/5=24 yuan

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