I bought 5 Rasgullas, 7 Ladoos and 4 Samosas. Preeti bought 6 Rasgullas, 8 Samosas and 14 Ladoos for

Let 5R+4S+7L=P
6R+8S+14L=3P/2
Subtracting Second one from first one R+4S+7L=P/2Subtract third from first =4R=P/2=,>R=P/8
5R=[(5P/8)/P]*100=62.5%
Hence the right option is 6.

Let, the amount paid be x,
5R + 7L + 4S = x
Preeti Amount be
6R + 14L + 8S = x + x/2,
Solving both equations we get,
R = x/8
So the percentage amount the Rasgulla was
(5/8)*100 = 62.50

5 Rasgullas+7 ladoos +4 samosas=Rs x....(1)
6 Rasgullas + 14 ladoos + 8 samosas= Rs y...y=1.5x...(2)
also 10 rasgullas + 14 ladoos + 8 samosas=Rs 2x(from1)...(3)
(3)-(2)=4
Rasgullas=0.5x=> 0.625x
% expenditure=0.625x/x*100=6.25%

let, price for each rasogolla ladoos and samosa are a,b,c total paid by me is 100 so preeti 150.
5a+7b+4c=100
7b+4c=100-5a
6a+14b+8c=150
6a+200-10a=150
4a=50
5a=62.5

6R+8S+14L= 1.5*(5R+7L+4S)
1.5R= 2S+3.5L
3R=4S+7L
8R=5R+4S+7L= x ( say)
5R/x=5/8 = 0.625 means 62.5%.... option 6

let total amount paid by me is 100.
so preeti paid 100*1.5 = 150.
let 5Rasgulla = 5x and 7 ladoos = 7y and 4 samosas = 4y
so, 5x + 11y = 100......(1)
same for preeti
6x + 22y = 150............(2)
by solving eq 1 and 2
x = 12.5
22y = 75
here price paid for 5 rasgulla = 5 * 12.5 = 62.5
total amount was 100 so the percentage paid for rasgullas 62.5 %

5*r + 7*l +4*s=x
6*r + 14*l +8*s=3x/2
where r=rasgulla l=laddu s=samosa x=total cost
after solving avove two equation we coclude
3*r=7*l + 4*s
by hit and trial method
l=5 s=5 r=15
now % is 75/120 *100=62.5

let i paid for the purchase = x
pretti = 3x/2
if preeti purchase 4 more rusgulaa then she has to pay total 2x.
so for 4 rusgulaa price is x/2.
then for 5 rasgula = 5x/8.
so % of money invested for rosgulaa by me . 5x/8x ×100 =62.5

5r+7l+4s=p(for me);
6r+14l+8s=p+(p/2)=3p/2;
on solving we get 1r=25/2%
which implies for 5 rasagulas=5*25/2=62.5%

5R+7L+4S=x
6R+14L+8S=1.5x
solving ,7L+4S=3R

5R+3R=x
8R=x
5R=(5x/8)
5R=0.625x
IN percentage 62.5%

Consider
5R+7L+4S=100
6R+14L+8S=150
(since money spent by preeti is half more than mine, therefore 100+(100/2)=150)

Solving these equations, we get
R=12.5
So 5R=62.5

(62.5/100)*100=62.5%

5r+7l+4s=A
7l+4s=A-5r

6r+2(7l+4s)=3A/2

Let total money paid by me= x then, money paid by preeti=3x/2 also, let cost of of 1 rasgulla=R, cost of 1 ladoo=L cost of 1 samoas=S Total money paid by me 5R+7L+4S=x 3R+2R+7L+4S=x 3R+7L+4S=x-2R --------------------->1 Total money paid by preeti 6R+14L+8S=3x/2 2(3R+7L+ 4S)=3x/2
3R+7L+4S=3x/4 putting value of 3R+7L+4S from eq. 1 x-2R=3x/4 R=x/8 % of total amount paid by me=(5x/8)*100 62.5%

let 5rasgullas+7ladoos+4samosas=100 --(equation 1)
then, 6 rasgullas + 8 samosas + 14 ladoos =150 -- (eq.2)
multiplying eq. 1 by 2 and subtracting eq. 2 from it
==> 4rasgullas=50
1 rasgulla = 12.5%
=> 5rasgullas=62.5%

Let 5R + 7L + 4S = x ----------(i)
then 6R + 14L + 8S = 3x/2 --------(ii)
Multiplying (i) by 2,& subtracting (ii) from it,we get the cost of 1 Rasgulla = Rs x/8. So cost of 5 Rasgulla = Rs 5x/8
Required %age = (500/8)% = 62.5%