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Step-by-step explanation:
4. let the smaller number be x
and greater number be y
atp,
y - x = 3
2x+3y = 19
from 1st equation we get,
y = 3 + x
using this value in 2nd equation, we get
2x + 3(3 + x) = 19
2x + 9 + 3x = 19
5x = 19-9
x= 10/5
x = 2
y= 3 + 2 = 5
5. total number of cards = 26
Probability = 4/26
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