Official Quant thread for CAT 2013

MBA CAT 2022
981

in a bag, there are total 150 coins of 1rs, 50ps, 25ps. if the total value of the coins is 150rs, then how many rs can be constituted by 50ps coins?

16
20
28
none of these


approach plz
982
@krum said:
3? tukka, subah sumit sir ne dala tha1) and 3) nai hoga cz, 0,0,0; and 0,1,-1(6 ways) baki 2 mien aapko koi method pata ho to bataeiye
nhn yar no better way..may be usko factorizekarna padega..but jab tak woh karenge tabb tak paper khatam bhi ho jaega
983
@bullseyes

Is it 3??

Approach: 80 can be written as 13*6 + 2, Now, 78 has to be written as a sum of 13 parts..

Now,Sum from 1 to 12 is 78, but that will only entail 12 boys. Thus, there are 3 boys who took 1 berries at the least. Hence, there are 3 boys each carrying 1 berry.. So a minimum of 3..
984
@audiq7 said:
in a bag, there are total 150 coins of 1rs, 50ps, 25ps. if the total value of the coins is 150rs, then how many rs can be constituted by 50ps coins?162028none of theseapproach plz
a+b+c=150
=>4a+4b+4c=600

a+b/2+c/4=150
=>4a+2b+c=600

2b+3c=0

not possible

none hai kya? 150 value hai to 150 1re ke hi honge


985
@audiq7

Are u sure the question has been rightfully put.. I mean 150 and 150..the common value??
986
@pyashraj yes.... ans is none of these. refer @krum 's post above
987
a+ 1/((b+1/(c+1/d+..... )) = 2(^1/3)

If a, b, c, d etc are positive integers, then what is the value of €˜b €™?
988
@bullseyes

Is it 2??
989
@audiq7 said:
in a bag, there are total 150 coins of 1rs, 50ps, 25ps. if the total value of the coins is 150rs, then how many rs can be constituted by 50ps coins?162028none of theseapproach plz
getting 0. is the ans none?
990
@bullseyes said:
a+ 1/((b+1/(c+1/d+..... )) = 2(^1/3)If a, b, c, d etc are positive integers, then what is the value of €˜b €™?
2?
991
@maddy2807 said:
getting 0. is the ans none?
i am also getting 0..
P.S. 1000th post of this thread
992
@bullseyes its answere is 3
993
@audiq7 0 boy ............150 coins constitute 150 rs n all coins of denominations of 1re,25p and 50p ...............so 150*1=150 ..................50p coins and 25paise cins 0
994
@bullseyes 2^(1/3) is somewhat near 1.25 and only 3 fits there
995

again.. the answer is 3


write down ur approches for everyone who r not getting answers
996
@bullseyes said:
14 boys went to collect berries and returned wd total of 80 berries among themselves. Every boy collected at least 1 berry each then what is the minimum no. of students who have collected same number of berries?
14 *15/2 = 105
12 boys -> 1 to 12
13th boy = 1
14th boy = 1

So 3 boys
997
If all factors of 720 are written in increasing order then which factors occupy the 18 and 26 position?
998
@audiq7 said:
in a bag, there are total 150 coins of 1rs, 50ps, 25ps. if the total value of the coins is 150rs, then how many rs can be constituted by 50ps coins?162028none of theseapproach plz
None of these

x = Re.1
y = 50p
z = 25p

x + y + z = 150
x + 0.5y + 0.25z = 150

subtract

0.5y + 0.75z = 0

y=0
z=0
x = 150


999
@grkkrg sir explain in detail i didnot get ur approach
1000
@bullseyes said:
14 boys went to collect berries and returned wd total of 80 berries among themselves. Every boy collected at least 1 berry each then what is the minimum no. of students who have collected same number of berries?
3?