How many tiles each of area 400 sq.cm will be needed to pave a foothpath which is 2m wide and surrounds a grass plot 25m long and 13m wide? (Pls show the calculations also)

Asked by anujbajpai44 | 19th Feb, 2018, 03:39: PM

Expert Answer:

begin mathsize 16px style Area space of space rectangular space plot
equals 25 cross times 13
equals 325 space straight m squared
Length space of space outside space rectangle
equals 25 plus 2 plus 2
equals 29 space straight m
Breadth space of space outside space rectangle
equals 13 plus 2 plus 2
equals 17 space straight m
Area space outside space rectangle
equals 29 cross times 17
equals 493 space straight m squared
Area space of space footpath
equals 493 minus 325
equals 168 space straight m squared
Tiles equals 400 space cm squared equals 0.04 space straight m squared
Number space of space tile space required equals fraction numerator 168 over denominator 0.04 end fraction equals 4200 space tiles end style

Answered by Sneha shidid | 19th Feb, 2018, 04:42: PM