Panduan Lengkap Flash, Root, dan Unlock STB Indihome HG680P

Problems:

⅔ of the mass of a lobster equal to ⅜ of the mass of a king crab. The difference in their masses is 7/10 kg. What is the mass of the king crab? Express your answer as mixed number in its simplest form.

Solution:

Equality ⅔ and ⅜ is use LCM (2,3) = 6 so that

2/3 = 6/9 

and 

3/8 = 6/16

It means that 

Part of Lobster : 6u

Whole Lobster : 9u

Part of King Crab : 6u

Whole King Crab 16u  

 

We know that their difference 7/10 kg so

16u – 9u = 7/10

<=> 7u = 7/10

<=> 1u = 1/10 

It implies whole king crab

16u = 16 × 1/10 = 16/10 = 1 3/5 kg

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