Quant by Arun Sharma

MBA CAT 2024
5286
22.. here the product = sum of the factorials :)

i guess u missed this 1


yeah i got it when I cross-checked it. Thanks anyways. 😃
5287
Q . The present age of 3 person are in the proportion of 5:8:7. eight years ago , the sum of their age was 76. find the present age of youngest person?
  1. 20

  1. 25
  2. 30
  3. None of these


25 years

5x+8x+7x=76+24
20x=100
x=5
5288
Q . The present age of 3 person are in the proportion of 5:8:7. eight years ago , the sum of their age was 76. find the present age of youngest person?
  1. 20

  1. 25
  2. 30
  3. None of these

76+3*8=100

youngest will be

5/20*100=25
5289
Q 1 . x's age is 1/10th of y's present age. y's age will be the thrice of z's age after 10 years. If z's eighth b'day was celebrated 2 years ago. Then the present age of x must be ?

  1. 5 years

  1. 10 years

  1. 15 years

  1. 20 years


Q . A year ago , Mohit was 4 times his son's age. In 6 years, his age will be 9 more than twice his son's age. What is the present age of the son?
  1. 10

  1. 9

  1. 20

  1. None of these




1.5 years
2.9 years
5290
Q 1 . x's age is 1/10th of y's present age. y's age will be the thrice of z's age after 10 years. If z's eighth b'day was celebrated 2 years ago. Then the present age of x must be ?

  1. 5 years

  1. 10 years

  1. 15 years

  1. 20 years



Here is the approach current age of Z= 10 (8+2 )

after 10 years it will be 20

and then Y= 20*3=60

so current age of y=60-10=50
and X is =1/10*50=5 yearss :)
Q . A year ago , Mohit was 4 times his son's age. In 6 years, his age will be 9 more than twice his son's age. What is the present age of the son?
  1. 10

  1. ;">9

  1. 20

  1. None of these


do by options here

9 is present

1 year ago it is 8 and hence his dad age is 8*4=32

now present age of dad is 33

and after 6 years Mohit will be 15 and His dad will be 15*2+9=39 and Option is correct
:)

Q . In an organizaation , the daily average wages of 20 illiterate employees is decreased from Rs. 25 to Rs. 10, thus the average salary of all the literate and illiterate employees is decreased by 10 per day. The no. of educated employees working in the organization are:
  1. 15
  2. 20
  3. 10


do it by ratio :

decrease in 15 will causing the overall decrease in 5 hence 5 is compensating with the some people which is included in overall 10 decrease hence

5:10 ::x=20 hence x=10
  1. 25

Q . Mr. Jagmohan calculated the average of 10 '3 digit no.' . But due to mistake he reversed the digits of a no and thus his average increased by 29.7 . The difference between the unit digit and hundred digit of that no. is
  1. 4
  2. 3
  3. 2

  1. Can't be determined.


Only possible case is 396

average increase is 29.7

hence overll increase is 297

so 297+99=396

u can keep on adding 99 but only this case is satisfied
5291

Find the least number that when divided by 16, 18 and 20 leaves a remainder 4 in each case ,but is completely divisible by 7.
Ans.
a.2254
b.2964
c.3234
d.2884

5292
Find the least number that when divided by 16, 18 and 20 leaves a remainder 4 in each case ,but is completely divisible by 7.
Ans.
a.2254
b.2964
c.3234
d.2884



2884 work through options it will hardly take 1 min
5293

A school having 270 students provides facilities for playing four games Cricket, Football, Tennis and Badminton. There are a few students in the school who do not play any of the four games. It is known that for every student in the school who plays at least N games, there are two students who play at least (N 1) games, for N = 2, 3 and 4. If the number of students who play all the four games is equal to the number of students who play none, then how many students in the school play exactly two of the four games?

a30
b60
c90
d120
pls show detailed sol.

5294
Find the least number that when divided by 16, 18 and 20 leaves a remainder 4 in each case ,but is completely divisible by 7.
Ans.
a.2254
b.2964
c.3234
d.2884

i guess it is : 2884
5295
A school having 270 students provides facilities for playing four games Cricket, Football, Tennis and Badminton. There are a few students in the school who do not play any of the four games. It is known that for every student in the school who plays at least N games, there are two students who play at least (N 1) games, for N = 2, 3 and 4. If the number of students who play all the four games is equal to the number of students who play none, then how many students in the school play exactly two of the four games?

a30
b60
c90
d120
pls show detailed sol.

answer is 60 😃
5296

pls show detailed sol.

5297

can any 1 suggest me... which 1 wld be better.. arun sharma or arihant for Quant?? i have arihant, but havnt startd it yet.. Considering to buy arun sharma...

5298

a man sells chocolates that come in boxes. Either full boxes or half a box of chocolates can be bought from him. A customer comes and buys half the number of boxes the seller has plus half a box. A second customer comes and buys half the remaining number of boxes plus half a box. After this,the seller is left with no chocolates box. How many chocolates boxes did the seller have before the first customer came?

5299
NITISH NEGI Says
a man sells chocolates that come in boxes. Either full boxes or half a box of chocolates can be bought from him. A customer comes and buys half the number of boxes the seller has plus half a box. A second customer comes and buys half the remaining number of boxes plus half a box. After this,the seller is left with no chocolates box. How many chocolates boxes did the seller have before the first customer came?

Is the ans. 3 ?

Regards,
Never Back Down
5300

Hi, i know the solution but i m using equation....need to know if it can be solved without the calculation by just using logic.....

Q. A team of woodcutters decided to harvest 216 metre cube of wheat in several days. For 1st three days they harvested estimated amount but then they started harvesting 8 metre cube more than the estimated amount. A day before the assignment was to be completed they had harvested total of 232 metre cube of wheat. What was the estimated amount.


from forth edition , Ch-3 Avergaes , LOD -III , Q 30

Thank You 😃

5301

I am preparing for cat 2012....I have done the basics but I need to practice to increase my speed, so from where should I start the arun sharma book? I have heard LOD 3 is very difficult...should I do that?

5302
Hi, i know the solution but i m using equation....need to know if it can be solved without the calculation by just using logic.....

Q. A team of woodcutters decided to harvest 216 metre cube of wheat in several days. For 1st three days they harvested estimated amount but then they started harvesting 8 metre cube more than the estimated amount. A day before the assignment was to be completed they had harvested total of 232 metre cube of wheat. What was the estimated amount.


from forth edition , Ch-3 Avergaes , LOD -III , Q 30

Thank You :)


unless the options are given, equation seems to be the only way of solving this. Other method, might be a hit n trial, but that'd be tedious ...

If options are given, we can straightaway use them to get the correct answer.
5303
1.5 years
2.9 years

lease just don't just give the answer, i'v answer key in my book too.
5304
do by options here


Only possible case is 396

average increase is 29.7

hence overll increase is 297

so 297+99=396

u can keep on adding 99 but only this case is satisfied


can you please explain the last two question in more detail. I didn't get it.
5305

please help me with Q no. 19 and 20 of Block 2 preassessment Test