@pavi.k said:If A's income is 25% more than B's income, then find the percentage by which B's income is less than that of A.
20%???
@pavi.k said:if the price of petrol increases by 25% and Rajesh intends to spend only 15% more on petrol, by how much % should he reduce the quantity of petrol that he buys?
is it 8%.i have done it by formulae,rate*consumption=expenditure
@pavi.k said:If A's income is 25% more than B's income, then find the percentage by which B's income is less than that of A.
20% will be the answer
let income of B=100rs
then A=125
now
25/125*100=20%
@pavi.k said:if the price of petrol increases by 25% and Rajesh intends to spend only 15% more on petrol, by how much % should he reduce the quantity of petrol that he buys?
let price be P
and expenditure=E
quantity=X
now P*E=X--------------1
now acc 2 given condition
1.25P*(X-k)=1.15E-------------2
solve 1 and 2 you will get the answer
@anticipator.lad said:@pavi.k 1080 mThis question asked on 23/09.2012...ACIO paperFrom which book you doing model paper. Share the secret.
i m nt getting plz explain 1080?
@pavi.k said:After striking the floor , a balll rebounds to 4/5th of the height from which it has fallen. find the total distance it travelled before coming to rest if it has been gently dropped from a height of 120m.a) 540 mb) 960 mc) 1080 mb) 1120 m
it will be a GP
now
initially it will get down from a height of 120 m
now it will again go back to a height of 96 m{120*4/5}
then it will again go down 96 m
and so on
so
120+2(96)+2(96*4/5)+.....
hence it is an infinite GP
with r=4/5
so
2*{96/1-4/5}+120
solve it you will get the answer
@coolparul007 said:i m nt getting plz explain 1080?
@gudda1122 said:it will be a GPnowinitially it will get down from a height of 120 mnow it will again go back to a height of 96 m{120*4/5}then it will again go down 96 mand so onso120+2(96)+2(96*4/5)+.....hence it is an infinite GPwith r=4/5so2*{96/1-4/5}+120solve it you will get the answer
thanx.....
arrey wah...mein sirf lunch ke liye gaya aur bahut saare aa gaye..@coolparul007 still need my help??? @gudda1122 have explained everything wonderfully as a thought process go.
yup it is understood........
@anticipator.lad arre nahi mast explain hai
and moreover dest ki practise
bdw how many marks u got in t1 and t 2 as per ssc key
@anticipator.lad said:@surajpandey reduction percentage question method, your way is more easier than book method which i was using.M. Tyra method-Owing to fall in price, there is saving of 25% on Rs. 60 i.e, 25% of 60 = Rs. 15For this Rs. 15, a person purchase 2 dozen of bananasHence reduced price per kg = Rs. 15/2 = Rs 7.5Original Price= 7.5 * 100 / (100-25) = Rs. 10Drawback of Tyra method:- here lots of brain is used and in exam my brain doesn't work at all. so i always need simple one there.
thanks bro...i just try to use my way rather than someone else..
yeah the solution given by you is complicated.. it will even be difficult to understand 😛
same this with me...in exams nothing works then the way you know.. ;)
yeah the solution given by you is complicated.. it will even be difficult to understand 😛
same this with me...in exams nothing works then the way you know.. ;)
@anuragtomar said:@surajpandey by the formule 100*100/100-x for reduction and 100*100/100+x for increaseby using this method we can find how much %or fraction more or less we can byin this question 100*100/100-25=400/3 than 400/3-100=1/3so 1/3 of original quantity we can buy more so 1/3=2 it means original quantity is 6kg and price is rs. 10
1/3=2" from where did you get this?
@pavi.k said:If A's income is 25% more than B's income, then find the percentage by which B's income is less than that of A.
simple but complicated for those who have no idea.
let a=125rs
b=100
b compare to a( a is the base)
25/125*100= 20% answer
am i rght? please clarify cos i m overconfident in this question and my answers comes wrong most of the time.,.. :P
let a=125rs
b=100
b compare to a( a is the base)
25/125*100= 20% answer
am i rght? please clarify cos i m overconfident in this question and my answers comes wrong most of the time.,.. :P
@surajpandey said:simple but complicated for those who have no idea.let a=125rs b=100b compare to a( a is the base)25/125*100= 20% answeram i rght? please clarify cos i m overconfident in this question and my answers comes wrong most of the time.,..
bhai..saachi batau...bahut confused rehta tha mein... and aur agar aaj bhi koi mujhe bole na ki nikal answer in this way....mujhe naani yaad aa jayegi..
suggestion to overcome difficulty in particular type of problem-
Book- Quantitative aptitude for CAT by Arun Sharma-
Unit- Percentages
Table 5.1
Bhai ye table ratt daal....jab kar lega na tab batana what you feel about such questions. I think then 10 seconds to read question and 2 seconds to know the sure shot answer. Within 12 seconds you going to get the answer for sure.
Thank you and like bhi tabhi karna...pehle yaad karke aao sab wo table...those who know and those who dont know.....
@anticipator.lad
ha.. i wrote that acio exam yaar.. i din do that sum that time.. so asked yo puys:)
secret revealed
@pavi.k Here everyone is giving every sort of exam. So there is no secret.
I'm waiting for questions or else i am start going to put CGL Tier-2 questions in bunch.. 
A point P cannot lie on the graph of the linear equation 3x-4y+1=0, if the co ordinates of p are..
a) (1,1)
b) (5,4)
c) (-1,2)
d) (-3,-2)
@pavi.k said:A point P cannot lie on the graph of the linear equation 3x-4y+1=0, if the co ordinates of p are..a) (1,1)b) (5,4)c) (-1,2)d) (-3,-2)
my take c
i m rgt or wrong.....
1. You have been doing (1 )/your homework (2)/regularly? (3)/ No error (4)
2. The same procedure (1)/ also should (2)/ for the final assessment (3) / No error (4)
3. I must find out (1)/ some means to balance (2)/ my budget (3) / No error (4)
4. Thank you, (1)/1 am fine (2)/ completely. (3) / No error (4)
5. He asked me (1)/when could I finish (2)/ the work. (3) / No error (4)