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MAZOEZI YA HISABATI
Thursday, January 30, 2014
WASTANI A9
Tafuta wastani wa 30 na 50.
Suluhu
30 + 50 = 80
Jumla ya namba = 80
Idadi ya namba = 2
Wastani = Jumla ya namba
÷
Idadi ya namba
= 80
÷
2
= 40
Hivyo wastani ni 40
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