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MAZOEZI YA HISABATI
Tuesday, January 28, 2014
WASTANI A3
Tafuta wastani wa 20 na 12.
Suluhu
20 + 12 = 32
Jumla ya namba = 32
Idadi ya namba = 2
Wastani = Jumla ya namba
÷
Idadi ya namba
= 32
÷
2
= 16
Hivyo wastani ni 16
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