Ramsukh bhai sells rasgulla (a favorite Indian sweet) at Rs.15 per kg. A rasgulla is made up of flour and sugar in the ratio of 5:3. The ratio of price of sugar and flour is 7:3 (per kg). Thus, he earns 6623% profit. What is the cost price of sugar?
A. 10/kg
B. 9/kg
C. 14/kg
D. 18
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Flour Sugar
Quantity. 5 : 3
Price. 3 : 7
------. -------
15. 21
15 + 21 = Rs 36
Total quantity =5 + 3 = 8kg costs Rs. 36
Profit 66 2/3 we can say out of 2 = 3 profit
2+3=5 ------ 3 profit
So, 15 ---------- 9 profit
So quantity of 8 kg multiplying 9 = Rs72
But, it also gives Rs. 36 so, 1-------Rs 2
Therefore cp of sugar = 7 *2=14
And xp of flour =3*2=6
A person sells Barfi sweet at Rs 102 per kg. A barfi is made up milk and sugar in the ratio 4:1. The ratio of price of sugar and milk is 2:5 per kg. he earns 42.84% profit. What is the cost price of milk?
SP of 1kg rasgulla= Rs.15
Profit= 200/3%
CP= (15×100)/(500/3)= Rs. 9
CP of 1 kg of sugar= 7x
CP of 1 kg of floor= 3x
3x. 7x
9
7x-9. 9-3x
7x-9/9-3x=5/3
x=2
CP of sugar= 7x= 14 per kg