UWIANO A5

Ikiwa 3: 8 = 10:B; Tafuta B.

Suluhu

3   =  10                            [cross multiply]

8        B

3 x B = 10 x 8

3B = 80

3B = 80                      [Gawanya kwa3 kila upande]

3        3

B = 26²/3

Hivyo B = 26²/3

ZAMU YAKO………

Ikiwa 3: 7 = 12 :H; Tafuta H.