set up
melon farmer
* * * Send them X.
watermelon
Eight quit to get y.
10 & lt; X & lt20, X and Y are
positive integer
y+y/2+y/3+ 1=x
10 & lt; 1 1y/6+ 1 & lt; 20
54/ 1 1 & lt; y & lt 1 14/ 1 1
5 & lt= y & lt= 10
Y is 2, 3
multiple
, so y=6
The melon farmers * * * gave them11* 6/6+1=12 watermelons.
set up
Bajie watermelon
The number x,
rule
The total number of watermelons donated by melon farmers is:
1+x+( 1/2)x+( 1/3)x = 10 ~ 19。
Trial and error method, x must be divisible by 2 and 3 (that is, divisible by 6) and satisfy the above formula, so
X can be 6, 12, 18 and so on.
compound
Title meaning
When x=6, the total number of watermelons given by melon farmers is (1+6+3+2)= 12.
This fits the problem, so
The total number of watermelons donated by melon farmers is
12
I think so! Thank you! ! !