Wakali wa Hisabati Part II

Ziltan

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Miaka kumi iliyopita umri wa Salum ulikuwa 1/5 ya umri wa baba yake wakati huo.
Miaka mitano ijayo umri wa Salumu utakuwa 1/2 ya umri wa baba yake wakati huo. Tafuta umri wa Salumu wa sasa.
Karibuni wadau.
 
1/5 na 1/2 ndiyo umri gani hakuna hesabu ya hivi.. na kama kuna jibu ni la uongo
 
Baba atakuwa kashafariki sidhani kama salumu atafikisha umri nusu wa Baba yake
 
Umri wa sasa wa Salumu ni miaka 15.
 
Kwanza baba yake Salimu anaitwa nani na anakaa wapi nikamuulize,tusisumbue watu wengine.
 
s-10=b/5........(1)
s+5=b/2.........(2)
(2)-(1): 15=3b/10
b=50, s=20
 
Salumu atakuwa kijana sana na babake atakuwa mzee
 
miss chagga said:
1/5 na 1/2 ndiyo umri gani hakuna hesabu ya hivi.. na kama kuna jibu ni la uongo
Click to expand...

source ya swali ni (Msemwa, P.B. Mitihani 12 ya Hisabati kwa darasa la 5, 6 na 7, Taaluma Publishers, mtihani wa 7, swali la 48, uk 21.
 
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