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Jika dan , maka

Jika begin mathsize 14px style straight A space colon space straight B equals 2 space colon space 3 end style dan begin mathsize 14px style straight B space colon space straight C equals 4 space colon space 5 end style, maka begin mathsize 14px style straight A space colon space straight C equals.... end style 

  1. begin mathsize 14px style 6 space colon space 12 end style 

  2. size 14px 7 size 14px space size 14px colon size 14px space size 14px 15 

  3. size 14px 8 size 14px space size 14px colon size 14px space size 14px 15 

  4. size 14px 12 size 14px space size 14px colon size 14px space size 14px 15 

Jawaban:

Dengan menyatakan unsur A dan unsur C dalam unsur B, diperoleh:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight A space colon space straight B end cell equals cell 2 space colon space 3 rightwards arrow straight A equals 2 over 3 straight B end cell row cell straight B space colon space straight C end cell equals cell 4 space colon space 5 rightwards arrow straight C equals 5 over 4 straight B end cell end table end style 

Maka:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight A space colon space straight C end cell equals cell 2 over 3 up diagonal strike straight B space colon space 5 over 4 up diagonal strike straight B end cell row blank equals cell 2 over 3 space colon space 5 over 4 end cell row blank equals cell open parentheses 2 over 3 cross times 12 close parentheses space colon space open parentheses 5 over 4 cross times 12 close parentheses end cell row blank equals cell 8 space colon space 15 end cell end table end style 

Jadi, begin mathsize 14px style straight A space colon space straight C end style adalah begin mathsize 14px style 8 space colon space 15 end style.

Dengan demikian, jawaban yang tepat adalah C.

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