Question

the difference of two positive number is 69 the quotient obtained on dividing one by the other is 4 find the number

Answer 1

let the two positive number be X and y
x-y = 69
x÷y = 4
(X = 4y)
4y -y = 69
3y =69
y = 23
x-y = 69
X = 69+23= 92

Answer 2

Let them be x and y respectively
so given 
x - y=69
and
x÷y =4
x = 4y ( by cross multiplication)
so we can write
x - y =69
as
4y - y = 69
3y =69
y =69÷3
y =23
now y is 23
so putting in any equation will give the value of x
so
x - y = 69
x - 23=69
x= 69+23
x = 92
x is 92 and y is 23 
Hope it helps
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