Question

maths Exam pls help step by step answer fast pls ​

Answer 1

Answer:

20 ,no. of rows

20 ,left

Step-by-step explanation:

factories 420

it is not a perfect square so down which is perfect square no

400 is perfect square no. just before 420

square root of 400 is 20

so,no of rows =20

left chair =20