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There are 2 yuan, 5 yuan and 6 yuan coupons in the playground. Xiaogang bought 15 coupons and spent 58 yuan. It is known that the number of 5 yuan and 6 yuan coupons is the same. Xiaogang bought 2 yuan, 5 yuan and 6 yuan coupons How many each?
Set 5 yuan and 6 yuan each x, 2 yuan 15-2x
2*(15-2X)+5X+6X=58
30-4X+11X=58
7X=28
X=4
5 yuan and 6 yuan, 4 sheets. 2 yuan, 7 sheets
Xiao Li and Xiao Gang jump rope, they jump 200 times, Xiao Gang jump is three times of Xiao Li. How many times do Xiao Li and Xiao Gang jump?
Xiaoli: 50
Xiaogang: 150
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