| Pattern | 1 |
| Pattern | 2 | ||||||
| Pattern | 3 | ||||||
A) 63
B) 56
C) 70
D) 49
Correct Answer: B
Solution :
No. of triangles in pattern 1 is 8, those in pattern 2 is 16, and in pattern 3 is 24. So, the number pattern of the number of triangles is 8, 16, 2 ?.. in which the consecutive terms differ by 8. So, the number of triangles in pattern 7 is 56.
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