CHSL & FCI PREPARATION

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264
@harysinghkuntal said:
@surajpandey well when it is not mentioned in question that anles are not equal to 90 or 0 it is easiest method
yes, and i think it wont be given their 99% time.. ;)
and incase if it is mentioned that you cant take 0, 90 then take 45.. cos with the values it is far more easier to calculate. :)
265
@pavi.k said:
3) A reduction of 25% in the price of bananas enables a customer to buy 2 dozen more for rs 60. The original price per dozen is...

well i have my solution and sharing here..but if someone here have something else easy then me than please let me know.
cp= x and SP- y (in dozen)
old cp * old sp= new cp* new sp ( as there is same total expenditure)
x * y = 3x/4 * y+2
when you will solve
y=6 and the total expenditure was rs 60.
thus rs 10 per dozen.

was i able to clarify?
266
@surajpandey said:
hi bro.. got an easiest way to solve this question.. let x=0 or 90. i m assuming x=0 sin0=0 cos0=1 (sin0-cos0)= -1 sin0 + cos0= 1 (sin^6 0) = (sin0)^6 thus (sin^0)6 + (cos0)^6= 1now put the value in equation. 3(-1)^4 + 6(1) + 4(1) 3+6+4=13was i able to explain properly? and i hope this is the easiest possible way to solve these kind of questions in exam. If i m wrong please let me know.
ya we can do it dis way since x can be anything for which sinx or cosx is defined.......
267
@surajpandey said:
parul please have a look at my solution.. you might find it more easy .. well your solution is also ok but you need to solve as soon as possible in exams.
thanx......
268

i have been selected in chsl 20111, alllocated ssc wr , anybody here know when will be the allocation of depts and joining

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@surajpandey Yes bro, that's a cool method. I too tried the same. but its fitting for only 0 , 45 and 90 degrees... For other angles, its getting complicated. But as far as i have seen in CGL 12, they have asked two varieties of this question and both are getting done by this method. So cheers!
270
@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. 15

For this Rs. 15, a person purchase 2 dozen of bananas

Hence reduced price per kg = Rs. 15/2 = Rs 7.5

Original Price= 7.5 * 100 / (100-25) = Rs. 10


Drawback 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.
271
@surajpandey by the formule 100*100/100-x for reduction and 100*100/100+x for increase
by using this method we can find how much %or fraction more or less we can by
in this question 100*100/100-25=400/3 than 400/3-100=1/3
so 1/3 of original quantity we can buy more so 1/3=2 it means original quantity is 6kg and price is rs. 10
272

gd 2 c dis th 4 fci.........i hv bn prep 4 bnk po ...and fci ka bi bhara hai .....but i thnk fci syb is bit dffrnt frm po.......gk mein current affairs to kayie hain mene but hist geo civics wale ques nai kayie. so fci ke gk section ke layie koi achi c books batao???????...........orr quan mein bi koi book batao as i hvnt done dose trignometry type ques???????.....plz do provide if any online link???

273

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.

274
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?
275

@pavi.k
1) B's income is less than that of A = 20%


2)
by how much % should he reduce the quantity of petrol that he buys = 8%
276
@pavi.k One kind request- Please give options also. As you know in SSC sometimes merely by looking at options you can know the answer.

And another reason, i fear from questions without options.
277
@anticipator.lad
too lazy to type options
278

can sum1 pls provide me the link to download the admit card with venue and timing details? for FCI

279
@tanmoy87
it will be sent to you by post.. if not download it from the ssc website before two weeks of the examination...
280
@pavi.k which topic you doing today? Tell me, so that i'll do the same and evening or by tomorrow, we will discuss all the questions given in latest papers.
281
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 m
b) 960 m
c) 1080 m
b) 1120 m
282

doing one model question paper and focussing on percentage..

283

@pavi.k 1080 m

This question asked on 23/09.2012...ACIO paper

From which book you doing model paper. Share the secret.