Due to a rise of `12%` in the price of mangoes a dealer gets 27 kg less for Rs. 24750. Find (a) The new price per kg of mangoes. (b) The orginal price

Let A be the event that the first mango is good, and B be the event that the second one is good. Then, required probability is `P(B//A)=(P(AnnB))/(P(A))` Now, probability that...

`E_(p)=(P)/(Q)xx(DeltaQ)/(DeltaP)` `(-)1=(40)/(80)xx(20)/(DeltaP)` `(-)1=(1)/(DeltaP)` `DeltaP=-1` New price `=P+DeltaP=4+(-1)=Rs.3`.

`E_(P) " of "X=(10)/(-5)=(-)2` `E_(P) " of "Y=(-6)/(2)=(-)3`

Given `{:("P"," Exp.","Qd.=Exp"divP),(1," "80," "80),(2," "96," "48):}` `E_(P)=(P)/(Q)xx(DeltaQ)/(DeltaP)xx(1)/(80)xx(-32)/(1)=(-)0.4.`

`{:(" Price"," Demand"),(" " 7," "12),(" "6," "(72)/(6)=12):}` `E_(P)=(P)/(Q)xx(DeltaQ)/(DeltaP)` `=(7)/(12)xx(0)/(-1)=0` The demand curve is parallel to the y- axis.

`E_(s)=(%"Change in supply")/(% "Change in price ")=((50)/(400)xx100)/(10)=((25)/(2))/(10)=(25)/(10)=1.25` Supply is elastic because `E_(s) gt 1`.

`E_(s) ` of X `=(40)/(16)=2.5` `therefore " "E_(s)` of Y =`2.5 div 2=1.25` `E_(s)` of Y `=(%"change in supply")/(% "change in price")` `1.25=(%"change in supply")/(8)` % change in supply `=8xx1.25=10`...

Correct Answer - ₹72

Correct Answer - 450 J

(2) Less proteins and more waste products