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MAZOEZI YA HISABATI
Wednesday, January 29, 2014
WASTANI A6
Tafuta wastani wa 13 na 17.
Suluhu
13 + 17 = 30
Jumla ya namba = 30
Idadi ya namba = 2
Wastani = Jumla ya namba
÷
Idadi ya namba
= 30
÷
2
= 15
Hivyo wastani ni 15
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