Matematika

Pertanyaan

There are five positive numbers. The sum of the first and the fifth number is 15. the second number is ⅓ of the sum of these five numbers, the third number is ¼ of this sum and the fourth number is 1/5 of this sum. What is the value of the largest number? (Pakai cara)
There are five positive numbers. The sum of the first and the fifth number is 15. the second number is ⅓ of the sum of these five numbers, the third number is ¼

1 Jawaban

  • example : the five positive numbers are a, b, c, d, and e,, the sum = x

    a + e = 15
    b = 1/3 x
    c = 1/4 x
    d = 1/5 x
    otomatis a = 1/2 x dan e = 1/6 x

    1/2 x + 1/6 x = 4/6 x = 2/3 x
    a + e = 15
    2/3 x = 15
    x = 15 : 2/3
    = 45/2

    the value of the largest number is
    a = 1/2 x = 1/2 ( 45/2 ) = 45
    =>> 45

    maaf kl salah