Volume 4: The perimeter of a squared floor of a room is 48 m.
a)Find its length b) Find its area
c) Find the cost of carpeting the floor at Rs 75 per sq. metre​

Google it that might work

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)