How many tiles, each of area 400cm² ,will be needed to pave a footpath which is 2m wide and surrounds a grass plot 25m long and 13m wide?

 

Asked by Sãhîl Kûmàr | 19th Jan, 2018, 03:39: PM

Expert Answer:

begin mathsize 16px style find space area space of space shaded space part space left parenthesis big square minus small square right parenthesis
let space no. space of space tiles space be space straight x
so space
400 cross times straight x equals left parenthesis big square minus small square right parenthesis
get space straight x end style

Answered by Arun | 19th Jan, 2018, 05:08: PM

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