Non Verbal Reasoning - Analytical Reasoning - Discussion

Discussion Forum : Analytical Reasoning - Section 1 (Q.No. 4)
4.

Find the number of triangles in the given figure.

12
18
22
26
Answer: Option
Explanation:

The figure may be labelled as shown.

The simplest triangles are AHB, GHI, BJC, GFE, GIE, IJE, CEJ and CDE i.e. 8 in number.

The triangles composed of two components each are HEG, BEC, HBE, JGE and ICE i.e. 5 in number.

The triangles composed of three components each are FHE, GCE and BED i.e. 3 in number.

There is only one triangle i.e. AGC composed of four components.

There is only one triangle i.e. AFD composed of nine components.

Thus, there are 8 + 5 + 3 + 1 + 1 = 18 triangles in the given figure.

Discussion:
32 comments Page 2 of 4.

Karthik said:   9 years ago
How this way is possible?

No of nodes + 2 * No of inner nodes.

Ca anyone explain it?

Azhar said:   1 decade ago
By using count only, we can find out the answers for this type of problems.
(2)

Deepak singh said:   1 decade ago
Is there any short tricks for these type of problems?, please tell me.
(1)

Midhun Kumar said:   1 decade ago
No short cuts are available till now, we have to solve by ourselves.
(1)

Pawan said:   1 decade ago
Tell the time saving trick, the above process is time consuming.

Rit said:   6 years ago
Total no nodes (8) + 2 * (5) inner nodes (h, b, g, c, e) = 18.
(4)

Jitesh said:   9 years ago
Please anyone tell me the Short trick for solving the problem.

Revanth said:   1 decade ago
I need some shortcut way to solve this. Can anyone suggest me?

Gopal said:   1 decade ago
Is there any shortcut or any formula to solve such problems !
(1)

Sri said:   1 decade ago
Is there any shortcut for counting number of triangle?
(1)


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