Doubt

[Rutvi Sharma]

When the price of a product is decreased by 10% the total sales increases by 30%, what is the total change in revenue?
(a) increases by 13%
(b) increases by 17%
(c) decreases by 13%
(d) decreases by 17%

[happy]

TR = P*Q
After Change

TR =(0.9P)(1.3Q)
TR = 1.17P*Q

So Total Revenue increased by 17 percent

[Rutvi Sharma]

Thanks just wanted to confirm the answer!

[Rutvi Sharma]

If SBI has total deposits of 40% and the Reserve ratio of 20%, What is the total amount that the money supply can increase by if it lends out all the money it can?
(a) 200 million
(b) 42 million
(c) 160 million
(d) 40 million  

[Rutvi Sharma]

Anyone?

[Niket]

You sure about the numbers?
I think it should be 40 million instead of 40%. If it is so

Check out the reserve ratio concept here- http://employees.oneonta.edu/beckei/E110RecentQuestionsEx3-Solutions.html

40*.8/.2=160 million

It can lend out 80% of 40million= 32 million and money supple will be increased by 32/0.2=160 million

[Rutvi Sharma]

Yes I checked.
Thanks a lot!

[Rutvi Sharma]

[Rutvi Sharma]

Trick of solving 13 14?

[Halflife]

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[Rutvi Sharma]

Thank you halflife!
13th?

[Halflife]

CONTENTS DELETED

The author has deleted this message.

[Niket]

For 13th- take out the common 4^61(1+4+16+64+256)=4^61*341 and 341 is divisible by 11

[Rutvi Sharma]

Got it!
Thank you guys!