Christmas MT's answer to Dian's Secondary 1 Maths Singapore question.
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Let smallest number = x, second number = x+2 and third number = x+4. (since all are odd numbers so the difference is 2)
Sum = 225
x + x + 2 + x + 4 = 225
3x + 6 = 225
3x = 219
x = 73
Numbers are 73, 75, 77
Sum = 225
x + x + 2 + x + 4 = 225
3x + 6 = 225
3x = 219
x = 73
Numbers are 73, 75, 77
Date Posted:
4 years ago
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