Latest TCS Aptitude Question SOLUTION: you are given 87 matchsticks .they are arranged in rectangular manner.Find the no of a)triangle formed b)rectangle formed

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you are given 87 matchsticks .they are arranged in rectangular manner.Find the no of a)triangle formed
b)rectangle formed

Asked In TCS Mohammad Asfar (10 years ago)

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RAVI GANGWAR  (10 years ago)

no of triangle=(87-1)/2=43
no of rectangle=43/2=21

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ravikanth.katikitala  (10 years ago)

given 87=29 * 3 so for eg:if 4 sticks are there then no of rectangles formed ==>
4(sticks)/4(sides)=1 rectangle is formed ; no of triangles= 4/3 =1 triangle is formed
now for 29(sticks) the no.of triangles formed = (29/3)=9 now for 87 sticks it is 9*3=27 triangles are formed with 87 sticks
similarly for 29 sticks rectangles formed => (29/4)=7 for 87(29*3) sticks it is
7*3= 21 rectangles

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pravin  (10 years ago)

no of triangle is 62 and no of rectangle is 21.suppose there are 5 matchsticks then no of rectangle=1 and no of triangle is 2.suppose there are 9 matchsticks arrenged in rectangular manner then no. of rectangle is 2 and no of triangle is 5
.and so on in 87 matchsticks 85 matchsticks will form 62 triangle and 21 rectangle.2 matchstick will not form anything

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hardik  (10 years ago)

No. of Triangles=42
No. of Rectangles=210

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Guru Pranav  (10 years ago)

43 traingles !!!
number of rectanlges = 28 ans !!!

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veerapuraju pavan ajay  (10 years ago)

87=43+43+1=42+44+1=39+3+44+1=39+48
39/3=13 triangles
48/4=12 rectangles can be formed

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