Wednesday, March 26, 2014

WASTANI A12



Tafuta wastani wa 19 na 17.
           
Suluhu

17 + 19 = 36

Jumla ya namba = 36
Idadi ya namba = 2

Wastani = Jumla ya namba ÷ Idadi ya namba
                = 36 ÷ 2  
                = 18

Hivyo wastani ni  18


ZAMU YAKO……………….

Tafuta wastani wa 23 na 17.

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