Xiao Hong, Xiao Hong's mother, Xiao Ming and Xiao Ming's mother played together in the park. They bought four tickets, which cost 11 yuan in total. The adult ticket is 4 yuan each, and how much is the child ticket? (solved by equation)

Xiao Hong, Xiao Hong's mother, Xiao Ming and Xiao Ming's mother played together in the park. They bought four tickets, which cost 11 yuan in total. The adult ticket is 4 yuan each, and how much is the child ticket? (solved by equation)

Suppose that each child ticket is x yuan, 4 × 2 + 2x = 11, & nbsp; & nbsp; 8 + 2x = 11, & nbsp; 8 + 2x-8 = 11-8, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 2x = 3, & nbsp; & nbsp; 2x △ 2 = 3 △ 2, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 1.5

1×3×11+2×6×22+3×9×33/1×2×17+2×4×34+3×6×51=?

(1×3×11+2×6×22+3×9×33)/(1×2×17+2×4×34+3×6×51)
=[(1×3×11+2×2×2×(1×3×11)+3×3×3×(1×3×11)]/[(1×2×17+2×2×2×(1×2×17)+3×3×3×(1×2×17)]
=(1×3×11)×(1+2×2×2+3×3×3)/[(1×2×17)×(1+2×2×2+3×3×3)]
=(1×3×11)/(1×2×17)
=33/34

Fill in the following numbers: 1 / 6, 1 / 3, 1 / 2, (), 5 / 6, 1 / 6

1 / 6, 1 / 3 = 2 / 6, 1 / 2 = 3 / 6, (2 / 3), 5 / 6, 6 / 6
Starting from the second item, each item is one sixth larger than the previous one
So the number in brackets is 4 / 6, which is reduced to 2 / 3

First find the rule, then fill in the number 3 / 4, 3 / 2, 3 / 6, ()

3 / 4, 3 / 2, 3 / 6, (12)
Rule: multiply by 2
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