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