[Official] Quant Thread for 2015!

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Hi everyone do anybody has pdf of total gadha of the chapter profit and loss.Please upload it. Thanks in advance

Is the 5-digit number pqr26 a perfect square?

    Q.1: The sum of the digits of a number N is 23. The remainder when N is divided by 11 is 7. What is the remainder when N is divided by 33? 
  • 7
  • 29
  • 16
  • 13

ABCD is rectangle and O is any point inside ABCD such that OA=4,OD=3 & OB=5. Find OC.

p.s.-Could not able to attach picture.

A cooler is sold for Rs 4000 cash or for Rs. 1600 cash down payment and 2 installment of Rs. 1300 paid monthly. Find the interest rate per annum?

Please post full detailed solution

  • 69.57
  • 67.57
  • 57.68
  • 68.52

0 voters

Puys, how to solve questions like this:

Find the sum of odd numbers of four digits which are divisible by 9..?

karthik borrows 24000 from a bank at 12 pa simple interest he repays 20% of the principal at the end of every year. What is the simple interest that has accrued for the first four years?

its a work problem from quantum cat by sarvesh kumar verma-
In a nut-bolt factory 180 workers are working for 6 hrs a day. Out of 180 workers there are some men,some women and rest are boys. All the workers can produce either nut or bolt or both of them. A man can produce 60 nuts and 80 bolts in each hour and a woman can produce 30 nuts and 60 bolts per hr. A man is thrice as efficient as a boy and 3/2 times as a woman. given that all men,all women and all boys produce equal number of articles of one kind (i.e., either nut or bolt) per hour.
1. working 6 hrs a day, how many nuts they can produce with 52500 bolt in each day? a) 17500 b) 26250 c)50850 d)can't be determined
2. in how many hours can 15 men,12 women and 8 boys can produce 12000 nuts and 8200 bolts? a)3 b)5 c) 6 d) none of these 
3) if 30 women and 50 boys can produce 5400 bolts in one hour then to produce equal number of nuts in one hour how many men are required? a)30 b)40 c)50 d) none of these
4) if the manager of the factory wanted equal number of men, women and boys in his factory but the efficiency of a man,woman and a boy remains constant, then the change in production is- a)increased by 10% b)decreased by 10% c) increased by 8.33% d)none of these

SOLUTION AND DETAILED EXPLANATION PLEASE!

sorry for spamming, but if anybody is interested in CAT full test series, PM me.. 

Hello friends, need suggestions as i am preparing on my own, just small question, how important is mensuration and geometry, do I need to through with solids, how important it is respect to others.

the number of ways in which 4 particular persons a,b, c , d and 6 more persons can stand in a queue so that a always stands before b, b always before c and c always before d is 

Ans. 10!/4!

Approach pls

A five digit number is formed using digits 1, 3, 5, 7 and 9 without repeating any one of them. What is the sum of all such possible numbers?

answer: 6666600.

Please explain your answer. 

A dumb one:

In a bag of marbles, there are 3 red, 2 white, and 5 blue. If Bob takes 2 marbles out of the bag, what is the probability that he will have one white and one blue marble? (Assume that Bob does not replace the marbles in the bag.)

My solution-selecting white=2c1 ,blue=5c1 , total sample=10c2

so 2c1*5c1*2/10c2 and multiply 2 as order is not important. vr i am going wrong.I know the probility is getting more than 1 . but wanted to know how i am thinking it the wrong way.

guys anyone having arun sharma's cat LR&DI pdf? would you mind to share it with me? please do reply.

In a industry,the raw materials & the finished goods are transported on the conveyor belt .There are two conveyor belt,one for carrying parts from point P to Q & another for carrying parts from point R to Q. P,Q &R are in  a straight line.Sometimes , the belt serve to a transport cart,which can themselves move  w.r.t the belts.The two belts moves at the speed of 0.5 m/s & the cart moves with the speed of 2m/s w.r.t belts.A cart moves from P to R & back to point P taking a total of 64s.find the distancePR in the meters.Assume that time taken by the cart to turn back at R is negliegible? 

a)48, b)54, c)60, d)64

N is the smallest number that has exactly 12 factors. What is the sum of the digits of n?

60 litres of diesel is required to travel 600km using 800cc engine. If the volume of diesel required to cover distance varies directly as the capacity of the engine, then how many litres of diesel is required to travel 800km using 1200cc engine?

Options:

a) 80L

b) 90L

c) 120L

d) 170L

I am not able to converge to an answer within the options 

How many 3 digit numbers are there using 1 to 9 where hundreds is greater than tens greater than ones place.

Please explain.

In a house, there are dogs, cats and parrots in the ratio 3:7:5. If the number of cats was more than the number of dogs by a multiple of both 9 and 7, what is the minimum number of pets in the house?

a)945

b)630

c)252

d)238

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Since "minimum" number of pets is asked i assumed 7x=3x+63. Any solution?