Question

find the distance walked by mohan if he takes three rounds of a square Park of side 85m. solve it

Answer 1

$distance \: \: walked \\ = 3 \times perimeter \: of \: square \\ 3 \times (4 \times 85) = 1020 \: \: m$

Answer 2

side of the park = 85 m
perimeter of square = 4 × side
= 4 × 85 m
= 340 m
in three rounds = 3 × 340
= 1020 m
so , the distance walked by mohan is 1020 m

Hope you understand.