Question

Block 1 Block 2 Block 3 Block 4 Block 5 How many red squares will be there in the 11th block of this pattern? 44 55 66 77​

Answer 1

This is a sequence then the equation of this is 11n then the 11 block contain 11*11 =121 red squares

Answer 2

$\bf\huge\underline{\underline{ Answer :- }}$

$\rule{10cm}{0.05cm}$

• Block 1 = 44 red squares

• Block 2 = 55 red Squares

• Block 3 = 66 red squares

• Block 4 = 77 red squares .

This is an AP with 1st term 44 and difference 11

• 11 th term = 1st term + 10 difference

• $\red{\implies}$ 11 th term = 44 + (10× 11 )

• $\red{\implies}$ 11 th term = 44 + 110

• $\red{\implies}$ 11 th term = 154

$\rule{10cm}{0.05cm}$

11th Block = 154 squares