5 thoughts on “Someone receives a bonus of 240 yuan, including 2 yuan, 5 yuan and 10 yuan, a total of 50 pieces, of which 2 yuan and 5 yuan are as many, then 2”
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For 2 yuan, there are X Zhang, then 5 yuan also has X Zhang, so 10 yuan will have 50-2x Zhang
The Known Known is 240
has 2x 5x 10 (50-2x) = 240
The X = 20
So there are 20 pieces of 2 yuan, 20 pieces of 5 yuan, 10 yuan for 10
There are X Zhang with 2 yuan 5 yuan, and 10 yuan with 50-2X,
(2 5) x 10 (50-2x) = 240
n So 10 yuan is 50-20-20 = 10.
The calculation method: 2 yuan is as many as 5 yuan, and it is seen as 7 yuan
10-240) ÷ (10 × 2-2-5) = 20 photos
So 10 yuan is 50-20-20 = 10 photos
It is to take 2 and 5 to 10, that is, 20 and 50, add up to 70, 240-70 is the number of 10 yuan, 17
is 10, 10, 17 photos, 17 photos
Set two yuan X Zhang 5 yuan X Zhang 10 yuan 50-2x Zhang
Set 2 yuan and 5 yuan each
2x 5x 10 (50-2x) = 240
x = 20
50-20x2 = 10