Quant by Arun Sharma

MBA CAT 2024
2963

No the options are 50 , 60, 40,70

2964

Edit: pls ignore the post

2965
priyamvada_89 Says
No the options are 50 , 60, 40,70

Its 70...Confirm the answer..Because for one hour only a portion a certainly filled so it has to above one hour..only option is 70...
2966

ignore pls...

2967

I dn hav the answer it was in a question paper

2968
priyamvada_89 Says
five pipes fill a cistern in 5 hours and 2 pipes empty it in 4 hours if all the pipes are open together find the time when the cistern will overflow

its will take 70 mins
2969

hey puys !
i wanted some suggestions from all of you guys...shud i be practising questions keeping the time factor in mind...im aware of the fact tht time is of essence in quant but if im attempting all questions of LOD 1 n 2 so shud i keep the ticking of clock in mind or not !!
All suggestions are welcome...

2970

if ur preparing for CAT 2011..then dont care for the time right now...as ur focus should be on clearing concepts...

take as much time as u want for doing LOD 1 ,2 or 3...

but start taking care of time limit from the month of May...





Puys,dont u think questions of numbers systems r too easy and too less in Arun Sharma?

i want to do more questions but dont know whre to find them...

pls tell me names of some other books for Quant.


pls be kind to reply guys...


Gurdeesh

2971

Rem of 51^203 / 7 is same as rem 2^203 /7 as rem 51/7 is 2.
Now rem of successive powers of 2 when divided by 7 are 2,4,1,2,4,1 n so on. The 203 rd term is 4 so rem is 4

2972

If a man saves Rs 1000 each year and invests at the end of the year at 5% compound interest, how much will be the amount at the end of fifteen years?

2973
SHIKHA mehta Says
If a man saves Rs 1000 each year and invests at the end of the year at 5% compound interest, how much will be the amount at the end of fifteen years?

The answer according to me is Rs. 21578.56. It can be found using the sum of GP:

1000(1.05^14+1.05^13+........+1.05^1+1.05^0)
2974

If from the digits 19, five distinct digits are used to form a pair of numbers, using all five digits exactly once; how many such pairs of numbers can be made?

( )60480
( )1890
()15120
( )30240

Please provide detailed explaination!! Thanks in Advance!:)

2975

Arun Sharma : NS: LOD2: Q 67 Page 46:

K is a three digit number such that the ratio of the number to the sum of its digit is least. What is the difference b/w the hundreds and the tenths digit of K?
7? 9? 8? 0?

What can be said about the difference b/w the tens and the units digit?
0? 1? 2? none of these?

For how many values of K will the ratio be highest?
7? 8? 9? None of these?

Please provide explanation as well..

2976

Hi ..i need to know if there is any study group or institute in Gurgaon that takes classes/sessions on Arun Sharma Quant? Its difficult on this forum again and again and that puts a break on the preparation. I had enrolled with CL and have their study material as well..but thats different ..Arun Sharma is way better but no sessions!!!!

2977
Arun Sharma : NS: LOD2: Q 67 Page 46:

K is a three digit number such that the ratio of the number to the sum of its digit is least. What is the difference b/w the hundreds and the tenths digit of K?
7? 9? 8? 0?

What can be said about the difference b/w the tens and the units digit?
0? 1? 2? none of these?

For how many values of K will the ratio be highest?
7? 8? 9? None of these?

Please provide explanation as well..


Doin these sort of qs. it's best to approach with trial n error and a bit of logic.. You can forget about 200s-900s considering the ratio to be minimum... and to make the ratio least, you should definitely have a 9 in the units digit.. now, just do a check on 109, 199 which are the 2 extremes in this case.. So, your answer should be 199..

1) 8

2) 0

3) None of these

Please confirm OA
2978
Doin these sort of qs. it's best to approach with trial n error and a bit of logic.. You can forget about 200s-900s considering the ratio to be minimum... and to make the ratio least, you should definitely have a 9 in the units digit.. now, just do a check on 109, 199 which are the 2 extremes in this case.. So, your answer should be 199..

1) 8

2) 0

3) None of these

Please confirm OA


Thanks mate! The answers are:
1) 8

2) 0

3) 9
2979
Doin these sort of qs. it's best to approach with trial n error and a bit of logic.. You can forget about 200s-900s considering the ratio to be minimum... and to make the ratio least, you should definitely have a 9 in the units digit.. now, just do a check on 109, 199 which are the 2 extremes in this case.. So, your answer should be 199..

1) 8

2) 0

3) None of these

Please confirm OA

Thanks mate! The answers are:
1) 8

2) 0

3) 9


OOPS, sorry.. missed out the word "highest" for the 3rd qs..

Highest is for nos. which will have 0's in units and tens.. 100, 200, 300...,900

Hence, a total of 9 nos..
2980
rahul005 Says
A sum of RS 36.90 is made up of 90 coins that are either 20p coins or 50p coins.Find out how many 20 paise coins are there in the total amount?..(a)47 (b)43 (c)27 (d)63 (e)70........pls do show the entire process


let 20 p coins be x and 50 p coins be y

then according to ques
20x + 50y = 3690 (1)
x + y = 90 (2)

solving these 2 ques we get
x=27
y=63

so ans is 27
2981

a man bought car under equated quaterly instalment scheme instalments to be paid at end of every 3 months.interest charged at 12% p.a compounded every 3 months.he paid installments for 5 yrs. if each installment was Rs 30000. find value(in lakh) at time of purchase.
(given:(100/103)^20=0.554)
a)4.56
4.46
4.64
4.52
plz give detail solution

2982
a man bought car under equated quaterly instalment scheme instalments to be paid at end of every 3 months.interest charged at 12% p.a compounded every 3 months.he paid installments for 5 yrs. if each installment was Rs 30000. find value(in lakh) at time of purchase.
(given:(100/103)^20=0.554)
a)4.56
4.46
4.64
4.52
plz give detail solution

There is a formula to find this

Each Instalment= Pxr/100
30000=px3/100
=>4.46