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the average height of seven students is 72 inches. if the tallest and shortest students are 75 and 64 inches, respectively, what is the average height of the remaining 5 students?​

Sagot :

[tex]\large\underline{ \mathcal {SOLUTION}}:[/tex]

Average = 72

  • 72 × 7 = 504

[tex] \\ [/tex]

Now , given that 2 of them is 75 and 64

  • 75 + 64 + x + x + x + x + x = 504
  • 139 + 5x = 504
  • 5x = 504 - 139
  • 5x = 365
  • x = 365 / 5
  • x = 73

[tex] \\ [/tex]

[tex]\large\underline{ \mathcal {ANSWER}}:[/tex]

  • The average of the 5 students is 73