1)3 yrs ago,average age of A,B & C was 27 and of B & C 5 yrs ago was 20 yrs.What is A's present age?
2)The average salary of all the workers is 95.Avg salary of 15 workers is 525 and the avg salary of rest of the workers is 85.Find the total no. of workers?
3)In a bag,there r 150 coins of Re.1,50p & 25p denominations.If the total value of coins is 150.Find how many rupees can be constituted by 50p coins.
My take on this one: 1) Answer: 40 Avg, age of A, B and C was 27 three years ago. So, today it will be 30. So, sum of ages = 90
Avg. age of B and C was 20 five years ago. So, today it will be 25. So, sum of ages of B and C = 50.
So, age of C = 40
2) Answer: 660 Salary of 15 workers is 525 which is 430 more than avg. Let n be the number of workers whose salary is 85 i.e. 10 less than avg.
So, 15*430 = n*10 => n=645 So, total number of workers = 660
3) Answer: 0 Bag has 150 coins and value is Rs. 150. So, only possibility is 150 coins of Rs. 150. So, no coins of 50 paisa.
where in delhi(preferably in south delhi) can i buy arun delhi at cheaper price or where can i buy 2nd hand arun sharma books!!!!!!!!!!
Try purchasing from flipkart.com I live in old delhi and purchase books from Nayi Sadak...the most common place to purchase books in delhi
But after purchasing from there, I checked out from flipkart and found it to be cheaper there. It costs somewhere around 300 bucks and it would be worth it.
Try purchasing from flipkart.com I live in old delhi and purchase books from Nayi Sadak...the most common place to purchase books in delhi
But after purchasing from there, I checked out from flipkart and found it to be cheaper there. It costs somewhere around 300 bucks and it would be worth it.
I know the prices at flipkart r less but they have now been revised so ............and do u hav ne idea about sunday market in daryaganj
I am new in PagalGuy. Can you please tell me which books should I buy for Quant, Verb and Data? I want to start my preparation soon. Please help!
Hey guys! Please help me! I'm going to buy the books tomorrow. Still I don't have any idea! Please please help me out dudes! Which one is better for Quant and why? Arun Sharma or Agarwal? And I don't have any idea about the books in Verbal and Data! Please suggest me books!
I know the prices at flipkart r less but they have now been revised so ............and do u hav ne idea about sunday market in daryaganj
Yes I know about it...its more about 2nd hand books. Even though its very near to my place, I would much rather prefer buying a new book rather than spending time on a sunday afternoon on darya ganj footpaths, searching for a specific book from so many piles....
Hey guys! Please help me! I'm going to buy the books tomorrow. Still I don't have any idea! Please please help me out dudes! Which one is better for Quant and why? Arun Sharma or Agarwal? And I don't have any idea about the books in Verbal and Data! Please suggest me books!
Best books are the study materials of various institutes like TIME... try and arrange those or buy them if you do not get them..
Best books are the study materials of various institutes like TIME... try and arrange those or buy them if you do not get them..
Thanks dude!:cheerio: I have two more questions
1. How are Arun Sharma books compared with coaching center materials? What are the differences? 2. Which coaching center gives the best study material?
1. How are Arun Sharma books compared with coaching center materials? What are the differences? 2. Which coaching center gives the best study material?
Arun sharma books are good for practise... However the coaching center materials have a much more detailed explanations so i prefer them. Materials of TIME are nice.. and in case you are from east India look for ERUDITE materials. They are quite nice..
Arun sharma books are good for practise... However the coaching center materials have a much more detailed explanations so i prefer them. Materials of TIME are nice.. and in case you are from east India look for ERUDITE materials. They are quite nice..
hii frends..i hv started my preps just few days back..i hv only book that is arun sharma quants...which other books for DI&LR; & Verbal ability should i prefer..from where can i get these books at reasonable cost
1. What is the smallest positive integer k such that C(2k, k) is divisible by 200? a23b61c13d11 2.N! has x zero's .(N+3)! has x+3 zero's. No of values that N can take in b/w 1 & 500 ?
3. I came across this theorem , i don't know whether its accurate or not, can anyone prove it? A triangle has 3 sides of length a,b,c then the maximum no triangles that can be formed max(a)-min(a)+1=max(b)-min(b)+1=max(c)-min(c)+1
Please post your approaches along with your answers
2.N! has x zero's .(N+3)! has x+3 zero's. No of values that N can take in b/w 1 & 500 ?
Please post your approaches along with your answers
122! has 28 zeroes 125! has 31 zeroes.
So, here,our condition satisfies i.e., N! has x and (N+3)! has x+3 So, all multiples of 125 between 1 & 500 will satisfy this condition,i.e, 125,250,375,500
