The hourly percentage increase in number of bees in a colony increases by 10 percentage points every hour. In the first hour, the increase in number of bees is 20%. Find the effective increase in number of bees in 2nd hour, if there are 1248 more bees in the third hour when compared to second hour?

let x be initial no. of beesafter 3 hours no. of bees will be= x*1.2*1.3*1.41248 more in third hour as compared to secondthusx*1.2*1.3*1.4 - x*1.2*1.3=1248x= 20001 hour - 2000*1.2 = 24002 hour - 2400*1.3 = 3120effective increase in second hour= 3120-2400= 720

let x be the initial number of bees. after 3 hours the number of bees will be x*1.2*1.3*1.4number of bees after 2 hours will be x*1.2*1.3the increase in the 3rd hour will be x*1.2*1.3*0.4=1248x=1248/0.144after 1 hour no.of bees= 10400increase in no.of bees in 2 hour =10400*(1.3-1)=3120

Sum of all the 3 digit numbers if repetition is not allowed?

(n-1)!*(summ of digits)*(111.....n timmes),n=no of digits

you didn't include the digit 0,I think

how do i quickly solve the DI problems

could you please provide me your email I'd I will give some short cut tricks plus 100% marks you would be able to get any exam from DI section

RC DoubtPlease check the link for RC and the question. I have a doubt in the question.

no its the 4 option. i thought us dollars too

A man purchased 120kg of sugar and was forced to sell it at a loss equal to selling price of 30kg of sugar. if he purchased each kg of sugar for rs.15, then at what price(in rs.) did he sell each kg of sugar?

Total cost price for the man = 120*15 = 1800. Now let the selling price be x then we have120x = 1800 - 30x=> 150x = 1800=> x = 12Hence he must have sold the sugar at rs 12 per kg.

Loss = CP - SP => 30* sp = 1800 - 120*sp => sp = 1800/150 = 12 . hence Selling price per kg = 12.

please provide me with CAT study material...if anyone have it

Hi MaheshWe have some free material for CAT. You can visit cracku.in/cat to access the free material. If you are looking for more study material then you can subscribe to our courses.Hope that helps.

How to solve para jumbles?

Find the smallest number which when divided by 7,8 and 9 leaves remainder of 5,4 and 2?Please explain the approach to solve such questions?

Hi Devashish, Para jumbles form a major part of the Verbal Section. It requires a lot of practice. Check out the link below for Tips and Tricks to tackle this part. https://cracku.in/blog/solve-parajumbles-cat/Please through the Free CAT Quotient to have a grasp on the kind of questions asked in CAT.https://cracku.in/cat/quotientCheers!! :)

What is the best method to solve the reading comprehension?

Hi Seeker ,Thanks for reaching out . Reading Comprehension is the most important part of Verbal Section for CAT Exam . It requires a lot of practice . Please go through the link below for checking out the tips and tricks required to ace it .https://cracku.in/blog/crack-reading-comprehension-for-cat/You can also attempt Free CAT Quotient for practice on this link https://cracku.in/cat/quotientCheers!!! :)

how to find dates in calendar?

Hi HarshaYou can find the dates by using the concept of odd days or you can use zeller's formula. You can read about them and solve some questions to understand how to apply these concepts. If you want a video explanation then you can subscribe to our video series where we have discussed this topic detail.Hope that helps.

i have problem in english and economy i.e. g.k.

Hi UdayIn order to improve your English, please develop a regular reading habit. Read newspapers on a daily basis. To understand the economy, read some book on basics of economics and try to follow business newspapers regularly. Hope that helps.