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A pattern of squares is made with matchsticks: 1 square needs 4 sticks, 2 squares in a row need 7 sticks, 3 squares need 10 sticks.
How many matchsticks are needed for 8 squares in a row?

Class 6Patterns in Whole NumbersWhole Numbers
  • A22
  • B25
  • C28
  • D32

Step-by-Step Solution

Sticks follow the rule (each extra square adds 3 sticks). For .
Answer: B) 25

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