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A pattern of toothpick squares is built in a row.
1 square uses 4 toothpicks, 2 squares (sharing a side) use 7, 3 squares use 10.
How many toothpicks are needed for 8 squares in a row?

Class 8Patterns in NumbersNumber System
  • A24
  • B25
  • C26
  • D27

Step-by-Step Solution

Each extra square adds 3 toothpicks: count = . For 8 squares: .
Answer: B) 25

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