RRB Group D 22-Sep-2018 Shift 1 Solved Paper

Question : 69 of 100

Marks: +1, -0

How many triangles are there in the following figure?

Solution:

There are three rectangles in the figure:

Rectangle(1) contains 18 triangles
Rectangle (2) contains 4 triangles.
Rectangle (3) contains 4 triangles.
Rectangles (2) and (3) together contains 9 triangles as we observe closely.
Total no. of

\Δ{s} \⇒18+4+4+1=27

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