JNU 2013

[Kajol]

Q2 ??

[samuraijack]

Two variable two equations
R+2D = 13
1000R+500D=5500

[Kajol]

Okay I thought that the price of good 2 is some variable P2 .So I was getting two equations with three variables.
Thanks.

On Apr 14, 2016 6:00 PM, "samuraijack [via Discussion forum]" <[hidden email]> wrote:

Two variable two equations
R+2D = 13
1000R+500D=5500

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[Kajol]

Can anyone explain Q70?

Populations of two species A and B at time 0 are equal. If the instantaneous rates of growth of populations of species A and B are u and u+1 respectively, u>0; then at time 1 the population of species B would be

a) twice the population of species A
b) log 10 times of the population of species A
c) e^u times the population of species A
d) e times the population of species A

On Apr 14, 2016 6:28 PM, "kajol dawar" <[hidden email]> wrote:

Okay I thought that the price of good 2 is some variable P2 .So I was getting two equations with three variables.
Thanks.

On Apr 14, 2016 6:00 PM, "samuraijack [via Discussion forum]" <[hidden email]> wrote:

Two variable two equations
R+2D = 13
1000R+500D=5500

---

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[Dr. Strange]

Answer is d

eqn 1 : dP1/P1dt = u  this gives ln P1/PO= ut
eqn 2: dP2/P2dt = u+1  this gives ln P2/PO= ut +t

for t=1
ln P2 - ln P1 =1
P2/P1 = e

[Var1995]

 u have taken relative rates of growth but the ques says instantaneous rates of growth. ignoring this, i m not getting the sol....could u explain?

[Eco16]

what is the answer of Q2 kajol?

[Kajol]

Solving the two equations 2D+R = 13 and 500D+1000R = 5500, you will get D=5 and R=3.

On May 2, 2016 1:41 PM, "Eco16 [via Discussion forum]" <[hidden email]> wrote:

what is the answer of Q2 kajol?

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