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TRINA DAS

· started a discussion

· 1 Months ago

Disgusting (Question:357341.0)

What type of question is this and what type of solution is given. Don't you think that it needs clarification?

Question:

The two lines 3x + 4y = 12 and 2x + 5y = 14, then area of the triangle at the x-axis is 

Options:
A)

107    unit2 

B)

277    unit2

C)

407   unit2 

D)

10 unit2 

Solution:

Line 3x + 4y = 12

  

And line 2x + 5y = 14

  

  

3x + 4y = 12    × 2

2x + 5y = 15 × 3

So,    6x + 8y = 24

6x + 15y = 42

So, y =  187   

Area of triangle =  12    × 3 ×  187    =  277    unit2

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