The demand for a good is 300 units at ₹ 10 per units. Price falls by ₹5 if pirce elasticity of demand is . Calculate demand after price fall.

Explanation

`{:(P" "10),(P_(1)" "5),(overlineunderline(DeltaP" "-5)):}" "{:(Q" "40),(Q_(1)" "?),(overlineunderline(DeltaQ" "?)):}`
`P.e_(D)= P/Qxx(DeltaQ)/(DeltaP)`
` (-)3= 10/40xx(DeltaQ)/ (-5)`
`DeltaQ=60 or DeltaQ-Q_(1)-Q`
`60= Q_(1)-40`
` 60+40= Q_(1) or Q_(1)= 100 "units" `