Counting of figures– Railway Reasoning (part – 1)

Total Questions: 50

11. How many triangles are there in the following figures? [RRB NTPC 04/01/2021 (Morning)]

Correct Answer: (b) 18
Solution:

There are 18 triangles in the given figure.AGB, BGE, FGE, AGF, BFE, AFE, ABE, ABF, HDE, BEH, HBC, DHC, BEC, BCD, EDC, BED, FBD, AEC.

12. Count the number of parallelograms in the following figure. [RRB NTPC 04/01/2021 (Evening)]

Correct Answer: (b) 18
Solution: AGHE, EHIF, FIJD, GBKH, HKLI, ILCJ, AGIF, EHJD, GBLI, HKCJ, AGJD, GBCJ, ABKE, EKLF, FLCD, ABLF, EKCD, ABCD

13. Study the given pattern carefully and select the number from among the given options that can replace the question mark. [RRB NTPC 17/01/2021 (Morning)]

Correct Answer: (a) 21
Solution:

Sum of the number of sides of all given figures = 4 + 5 + 3 + 6 + 3 = 21

14. Study the given pattern carefully and select the number that can replace the question mark (?) in it. [RRB NTPC 17/01/2021 (Morning)]

Correct Answer: (a) 11
Solution:

Logic: rectangle means 4 , pentagon means 5 and circle means 2. 4 + 5 + 2 = 11

15. How many triangles are there in the given diagram? [RRB NTPC 19/01/2021 (Morning)]

Correct Answer: (a) 9
Solution:

Triangles in the given diagram are 9

16. How many triangles does this figure have? [RRB NTPC 22/01/2021 (Morning)]

Correct Answer: (b) 13
Solution:

Total number of triangle = 13

17. Find the total number of triangles in the following figure: [RRB NTPC 22/01/2021 (Evening)]

Correct Answer: (d) 16
Solution:

This type of rectangle has 8 × 2 = 16

18. How many pentagons are there in the given figure? [RRB NTPC 23/01/2021 (Morning)]

Correct Answer: (d) 3
Solution:

19. How many squares are there in the given figure? [RRB NTPC 22/02/2021 (Evening)]

Correct Answer: (c) 32
Solution:

20. Study the given pattern carefully and select the option that can replace the question mark(?) in it. [ RRB NTPC 23/02/2021 (Morning)]

Correct Answer: (b) 2; 2; 3; 2
Solution: