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MAZOEZI YA HISABATI
Wednesday, January 29, 2014
WASTANI A7
Tafuta wastani wa 10 na 30.
Suluhu
10 + 30 = 40
Jumla ya namba = 40
Idadi ya namba = 2
Wastani = Jumla ya namba
÷
Idadi ya namba
= 40
÷
2
= 20
Hivyo wastani ni 20
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