ISI 2017 key

[MAC]

In PEA,

9. C is the answer. Each person has n options. So,
n.n.n...k times and then multiply with k! for permutations between them.

17. Answer is C. Draw the graph. It is 2 straight lines. Neither concave nor convex!

[Halflife]

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[Abhitesh]

Anyone crossing 175?

[Abhitesh]

Seems D should be right.
n+k-1Cn-1 * k!

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[Abhitesh]

180... lil anxious.

D should be right. Imagine k balls to be placed into n boxes this time balls can be permuted.

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[Abhitesh]

Cut off most like should be combined with some sectional cutoff.

DSE may be taken to be the benchmark. DSE cutoff is typically 40%. Assume 10-12 question in DSE that cannot be answered by anyone. This give 100 general student above 45%. Top 25(for interview) GC students should score around 55%-60% marks which .55*60= 33-36 correct and not answering rest.

(36*4)+24 = 168

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[Abhitesh]

This is random estimate. We can never know how thin is the upper tail of the graph.

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[Abhitesh]

This is for GC. Last time they called 51 students. So if there is ~50% reservation. You have to be in top 26.

As far as cutoff is concerned one do more rigorous estimation. ~2K GC students appear and 100 score above 45% try getting some estimate for mean SD. You may survey your friends if possible. Cut will be likely lower than 168.

[Daffodils]

i know more than 10 people scoring above 170-175. Kolkata has some amazing brains.

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[happy]

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[happy]

PEB 7:





ans a. real GDP increase, price decrease

is it correct?

[Asd1995]

I did the same thing, except, I googled and found out that sticky price and wage both lead to an upward sloping supply curve. Are you absolutely certain it will be horizontal in sticky price case?