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JAMB Mathematics 2020 Paper

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Question : 1

Total: 40

Evaluate (212)

_3

_3

_3

(313) $_3$
(1000) $_3$
(1020) $_3$
(1222) $_3$

Solution:

Evaluate (212) $_3$ - (121) $_3$ + (222) $_3$

(212) $_3$ + (222) $_3$ = 1211 $_3$

→ 1211 $_3$ - 121 $_3$

= 1020 $_3$

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