CPT MATHS QUESTION PROBLEM:(

answer number 3 is correct but 1answer is wrong :(

answer of 1 is 576

nikhil answer of payal is correct..

its 2880 only..

in cpt book 4 option are give a)576B)676C)625D)524

i have some more interesting question in this chapter :)

1)there are 10 train plying between calcutta and delhi.the number of ways in which a person can go frpm calcutta to delhi and return by a train ?

there are 100 ways to ply btwn calcutta n delhi..

10 ways for calcutta to delhi n again 10 from delhi to calcutta

answer in icai material is give 90ways for this question :(

can u help me to understand how is it possible ?

nikhil if answer to this question is 90 that means they are considering that repetition is not allowed

the way which is used to go from calcutta to delhi can not be used for return journey..

in that case answer would be 90 ways

thanks bro :) i will ask some more question from u all :)

sure nikhil..

hey i have one combination problem plz help me in this question

nCr-1=56,nCr=28and nCr+1=8,then r is equal to

plz solve this question for me :(

fstly divide nCr by nCr-1, it vl give you an eqation

then divide nCr+1 by nCr, it vl give you an other eqation

nw you hv 2 eqations n two variables to solve..i guess u cn solve it nw

IF a lotus if 1" above the water surface, with cool breeze it emerge in by 7" . what is the depth of the pond.???????????

plz asnwer this Quation asap :)