The average of 2 numbers is 7 and 3 times the difference between them is 18, find the numbers
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let the two numbers be x and y
then,
x+y/2 = 7
x+y = 14 ------- (i)
and,
3(x-y) = 18
x-y = 6 --------(ii)
on adding eq (i) and (ii) we get,
2x = 20
x= 10
so, y= 4
then,
x+y/2 = 7
x+y = 14 ------- (i)
and,
3(x-y) = 18
x-y = 6 --------(ii)
on adding eq (i) and (ii) we get,
2x = 20
x= 10
so, y= 4
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