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rohit singh

· started a discussion

· 1 Months ago

wrong solution (Question: 257197.0 )

how can the height be so long

Question:

In this figure,  DEBC=14     and DE || BC and area of ∆ADE = 10 unit2, find the area  ∆DEC.

  

Options:
A)

20

B)

25

C)

30

D)

40

Solution:

Ans: (c)

  

Mukesh

· commented

· 1 Months ago

that is wrong but if you take 1:4 = 1y:4y ....after calculation as done in solution y is canceled out in last.
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