Quant by Arun Sharma

MBA CAT 2024
4746
total 7 digit numbers = 9*10^6 = 9000000

digit sum of half of the numbers will be odd and other half will have even digit sum

so it will be 9000000/2 = 4500000


This is the total number of 7 digit numbers which are odd.
The question is about the sum of digits. Hope you understand the difference.
4747
This is the total number of 7 digit numbers which are odd.
The question is about the sum of digits. Hope you understand the difference.

No bro its true for Sum as well, better u check it rather than pointing out ,u will get it
4748

From 4 gentleman and 4 ladies a committee of 5 is to be formed....find number of ways of selecting a comittee with atleast 3 women such that atleast one women hold the post of either president or vp.....committee consist of a president,vp and 3 secrataries.

4749

Q. A supply of water lasts for 150 days, if 7.5 gallons leak out every day, but only for 100 days if 15 gallons leak out daily. what is the total quantity of water in the supply?

4750
prakash_miku Says
Q. A supply of water lasts for 150 days, if 7.5 gallons leak out every day, but only for 100 days if 15 gallons leak out daily. what is the total quantity of water in the supply?

let everyday consumption
(x*150) + (7.5*150) = (x*100) + (15 * 100)
x= 7.5 lt
so total capacity
= 15 *150
=2250 lt
4751
prakash_miku Says
Q. A supply of water lasts for 150 days, if 7.5 gallons leak out every day, but only for 100 days if 15 gallons leak out daily. what is the total quantity of water in the supply?

let everyday consumption is x lt then
(x*150) + (7.5*150) = (x*100) + (15 * 100)
x= 7.5 lt
so total capacity
= 15 *150
=2250 lt
4752

4 LADIES AND 4 GENTLEMAN SELECT A TEAM
Oa 112 ?

:|

4753

if rakesh and ramesh take 10 days and 12 days respectively to complete a job ,find the time in which the job would have been completed.

how to solve this type of question ....thanks ..

4754
if rakesh and ramesh take 10 days and 12 days respectively to complete a job ,find the time in which the job would have been completed.

how to solve this type of question ....thanks ..

hi,
if rakes takes 10 days it means he will do 1/10 or 10% of the work per day. similarly, ramesh will do 1/12 or 8.33% per day.
Now together they will do 10% + 8.33% = 18.33 % per day
so we can find how much time they together need to do 100% of the work.
here it would be 6 days. i hope it is clear now 😃
4755

thanks
but what would be the answer if the question get modified like this ...

If Rakesh and Ramesh take 10 days and 12 days respectively to complete a job they work on alternate days to complete it with rakesh starting the job,find the time in which the job would have been completed(in days)
ans is 65/6(10 5/6).....thanks

4756
if rakesh and ramesh take 10 days and 12 days respectively to complete a job ,find the time in which the job would have been completed.

how to solve this type of question ....thanks ..

one day work of rakesh = 1/10
one day work of ramesh =1/12
part completed in one day by both guys = 1/10 +1/12
= (6+5)/60
= 11/60 part
so total work done in days = 60 / 11 = 5 (5/11) days
4757
thanks
but what would be the answer if the question get modified like this ...

If Rakesh and Ramesh take 10 days and 12 days respectively to complete a job they work on alternate days to complete it with rakesh starting the job,find the time in which the job would have been completed(in days)
ans is 65/6(10 5/6).....thanks


it would be simple too..add for 10 days starting from rakesh:
10%(5) + 8.33%(5) = 91.65% . Now, both have worked for 5 complete days and less than 10% of work is left and rakesh will do that in an extra day. so
we have nearly 11 days. the given answer shows the same, as 65/6 = 10.8333. so you can look it up in the options. right? 😃
4758
thanks
but what would be the answer if the question get modified like this ...

If Rakesh and Ramesh take 10 days and 12 days respectively to complete a job they work on alternate days to complete it with rakesh starting the job,find the time in which the job would have been completed(in days)
ans is 65/6(10 5/6).....thanks




if they work alternately

and rakesh started
then work on first day = 1/ 10
then work on second day = 1/ 12

so now total work complete in two days = (1/10 + 1/12)
= (11/60)

so repeat the cycle for work completion = (11/60) * 5 = 2 *5 days

now work remaining after 10 days = 1- 55/60 = 5 / 60

and day is 11th day so chnace for rakesh so he will complete the task in (5/60) / (1/10) = 50/60 or 5/6 days

so work complete if rakesh start = 10 (5/6) days

and if rohan start work complete (5/60)/(1/12) = 1 day

so he wil take 11 days

and difference = 11-10(5/6) = 1/6 days
4759
thanks
but what would be the answer if the question get modified like this ...

If Rakesh and Ramesh take 10 days and 12 days respectively to complete a job they work on alternate days to complete it with rakesh starting the job,find the time in which the job would have been completed(in days)
ans is 65/6(10 5/6).....thanks




if they work alternately

and rakesh started
then work on first day = 1/ 10
then work on second day = 1/ 12

so now total work complete in two days = (1/10 + 1/12)
= (11/60)

so repeat the cycle for work completion = (11/60) * 5 = 2 *5 days

now work remaining after 10 days = 1- 55/60 = 5 / 60

and day is 11th day so chnace for rakesh so he will complete the task in (5/60) / (1/10) = 50/60 or 5/6 days

so work complete if rakesh start = 10 (5/6) days

and if rohan start work complete (5/60)/(1/12) = 1 day

so he wil take 11 days

and difference = 11-10(5/6) = 1/6 days
4760

thanks bro....but can u tell me frm where is 5 is coming till 11/60 it is clear can u tell me in more detail tthat how
(11/60) * 5 = 2 *5 days is coming ........i will be very thankfull to u ....

4761

thanks bro....but can u tell me frm where is 5 is coming till 11/60 it is clear can u tell me in more detail tthat how
(11/60) * 5 = 2 *5 days is coming ........i will be very thankfull to u ....

4762
thanks bro....but can u tell me frm where is 5 is coming till 11/60 it is clear can u tell me in more detail tthat how
(11/60) * 5 = 2 *5 days is coming ........i will be very thankfull to u ....




are bhai 2 days ka work 11/60

and total work is 1
to ham 11 /60 ko ase no se multiply karenge jo isko 1 ke bilkul near abt but usse kam hona chahiye
like( 11/60) * 5 = 55 /60
and if we multiply 11/60 with 6 ans 66/60 which is more than 1
so we multiply with 5
means we repeat 2 days cycle for 5 times
means total 10 days

bhai syad ab clear ho jaayega
4763

A dishonest dealer claims to sell a product at its cost price.He uses a counterfeit weight which is 20% less than the real weight.Further greed overtook him and he added 20% impurities to the product.Find the net profit per centage?

a)50%
b)44%
c)40%
pls do show the whole process

4764

A dishonest dealer claims to sell a product at its cost price.He uses a counterfeit weight which is 20% less than the real weight.Further greed overtook him and he added 20% impurities to the product.Find the net profit per centage?

a)50%
b)44%
c)40%
pls do show the whole process

4765
A dishonest dealer claims to sell a product at its cost price.He uses a counterfeit weight which is 20% less than the real weight.Further greed overtook him and he added 20% impurities to the product.Find the net profit per centage?

a)50%
b)44%
c)40%
pls do show the whole process


my take is option C.....
what is the OA????///
kindly don't do multiple post
it is against the forum rules