Let CP be x and SP be y.
3(y ?x) = (2y ?x)y = 2x
Profit = y ?x = 2x ?x = x
Profit% = x/x X 100 = 100%
Let the two item be A and B.
Cost price of A be x and cost price of B be y.
A sold for Rs 1000 on 10 % gain = 1.1x =1000
x= 1000/1.1 = 909.09
B sold for Rs. 1000 on 10% loss = 0.9y =1000y= 1000/0.9 = 1111.11
Total cost price of A and B = 2020.20
Selling price of A and B = 2000
Loss % = (2020.20 ?2000)/2000 X 100
= 1.01 % loss
Annual salary of Arun = 7,68,000 Rs.
Monthly salary = 7,68,000/12 = Rs. 64,000
Spending on children = Rs. 12,000
Rest = 52,000
1/13th of the rest = 52,000/13 = Rs. 4,000 is spent on food.
Rs. 8,000 is spent in mutual funds.
Monthly savings = 64,000 - (12,000+4,000+8,000) = Rs. 40,000.
Ans.
Let B?s investment = x rs.
? A?s investment =( x + 1200) rs.
Ratio of the profits of A and B = (x+1200)*(15+4):x*15 = {19(x+1200)}:15x
Now,let the total profit of A =y
? total profit of B = (y-280)
But total profit = 1240
?y+(y-280)=1240
?2y=1520
?y= 760
?profit of A = 760rs.
Profit of B = 760-280=480 rs.
Ratio of profits= 760:480 = 19:12
According to the question,
19(x+1200)/15x = 19/12
12x+14400 = 15x
?3x = 14400
?x = 4800 rs.
?investment of A = 4800+1200
= 6000 rs.
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