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MCQ

By using dot (.) patterns, which of the following numbers can be arranged in all the three ways namely a line, a triangle and a rectangle?

#### Options

9

10

11

12

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#### Solution

**10**

**Explanation:**

By using 10 dots, we can make a line, a triangle and a rectangle.

Concept: Patterns in Whole Numbers

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#### RELATED QUESTIONS

Study the pattern:

1 × 8 + 1 = 9 |

12 × 8 + 2 = 98 |

123 × 8 + 3 = 987 |

1234 × 8 + 4 = 9876 |

12345 × 8 + 5 = 98765 |

Write the next two steps. Can you say how the pattern works?

(Hint: 12345 = 11111 + 1111 + 111 + 11 + 1).