If the interest earned is 25% more than the earlier interest then the rate of interest also should be 25% higher than the earlier rate.
Let the earlier rate of interest be x%.
Now it will be (x + 3)%
% increase = (x + 3) - x/x * 100 = 25
=> x = 12%
Given Loss = Rs. 40.4
We know loss = cost price - selling price
40.4 = CP - 35(15)
=> CP = 40.4 + 525
=> CP = Rs. 565.4
Now the New selling price of waffer is Rs. 18
=> SP = 35(18) = 630
Now Gain = SP - CP = 630 -565.4 = Rs. 64.6.
SP of first article = 1000
Profit = 20%
CP = = 5000/6 = 2500/3
SP of second article = 1000
Loss = 20%
CP = = 5000/4 = 1250
Total SP = 2000
Total CP = + 1250 = 6250/3
CP is more than SP, he makes a loss.
Loss = CP-SP = (6250/3)- 2000 = 250/3
Loss Percent =
= 4%
Let C.P.= Rs. 100.
Then, Profit = Rs.220,
S.P. = Rs.320.
New C.P. = 125% of Rs. 100 = Rs. 125
New S.P. = Rs.320.
Profit = Rs. (320 - 125) = Rs. 195
Required percentage = == 60.9 =~ 61%
100
65
-------
65 ------- 35
100 ------ ? => 53.84 %
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