Previous Years DSE.. Please help

[Qwerty]

[Qwerty]

Help me with the middle one...I do not know how to proceed.

[Ansh malhotra]

[Qwerty]

Thankyou Ansh..

[Qwerty]

Question 3 & 4 guys

[Ansh malhotra]

Answer to question4 is d
Because increase in labour supply will produce biased expansion
Towards good x and relative price will
Fall

[Qwerty]

Are you sure of the fall in relative price because they have written it is a "small" open economy. for a large country relative prices undoubtedly falls but then here???

[Ansh malhotra]

You are right qwerty answer should be c .
Thanks for pointing out . Which year question paper is this

[Qwerty]

[Qwerty]

[Qwerty]

thats all..these are all from 2001-2003

[harshdua]

Ques 45 from dse 2012 on convexity can anybody help???

[Ansh malhotra]

[harshdua]

Thanks Ansh, but is this the standard formula for checking convexity of func