The sum of two numbers is 168. The sum of 1/8 of the smaller number and of 3/4 the greater number is 76. Find the difference between the two numbers.
The sum of two numbers is 168. The sum of 1/8 of the smaller number and of 3/4 the greater number is 76. Find the difference between the two numbers.
A + B = 168 ——>> A + B = 168 (eq 1)
(1/8)A + (3/4)B = 76 —>> multiply across by 8 ——>> A + 6B = 608 (eq 2)
subtract (eq 1) from (eq 2) 5B = 440
B = 88
A + B = 168
A + 88 = 168
A = 80
88 – 80 = 8
check answer
(1/8)(80) + (3/4)(88) =? 76
10 + 66 = 76
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