A shopkeeper mixed 7kg of salt worth Rs 6 per kg 5kg of salt worth Rs 4 per kg and

price for 18kg mixture(7kg+5kg+6kg)=7*6+5*4+6*5=rs92
so for 4kg=(92/18)*4=184/9
as he made 25/2% profit so add it to c.p to get the amount as
184/9+(25/2)*(1/100)*(184/9)=(736+92)/36
=828/36
=rs23(no approximation needed its a whole no. itelf)
10 years agoHelpfull: Yes(6) No(0)
7kg*Rs6---- Rs 42
5 kg*Rs4---- Rs 20
6kg*Rs5---- Rs 30
total mixture---7kg+5kg+6kg--18kg
price of 18kg mixture----7*6+5*4+6*5=rs92
18kg for Rs--92 cost price of 1 kg=92/18
cost of 4 kg----(92/18)*4=184/9rs
as he made 25/2% profit so add it to c.p to get the amount as
SP={(100+Gain%)/100}*CP
={(100+25/2)/100}*(184/9)
=rs23
10 years agoHelpfull: Yes(4) No(0)
after calculation 22.95 is the answer..
10 years agoHelpfull: Yes(1) No(2)
rs. 92
first find cost price of 1 kg rice and then find the selling price using the given profit
10 years agoHelpfull: Yes(0) No(7)
5.75 per kg
10 years agoHelpfull: Yes(0) No(5)
ans: 3Rs/kg
10 years agoHelpfull: Yes(0) No(1)
26 rs.
total price =42+30+20=92
profit %=sp-cp*100/cp
10 years agoHelpfull: Yes(0) No(0)
7*6=42,5*4=20,6*5=30...42+20+30=92------for 18kg
1kg---Rs 5.11111..for 4kg----4*5.11111=Rs
asume-20.4444---100%
? ----112.5%
aproximatly 23
9 years agoHelpfull: Yes(0) No(0)
Please send me tech mahindhra paper
sanjeevkv007@gmail.com
9 years agoHelpfull: Yes(0) No(0)

A shopkeeper mixed 7kg of salt worth Rs.6 per kg, 5kg of salt worth Rs.4 per kg and 6 kg of salt worth Rs.5 per kg. For what amount of money should he sell 4 kg of the mixed variety of salt in order to make a profit of 12½%?