প্রশ্ন ও উত্তর
The average of 3 numbers is 7. If 2 of the numbers are zero, then what is the 3rd number?
গণিত Number System 07 Oct, 2020
প্রশ্ন The average of 3 numbers is 7. If 2 of the numbers are zero, then what is the 3rd number?
সঠিক উত্তর
21
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