Question
A dishonest seller, at the time of selling and
purchasing uses weight 22% less and 30% more per kg respectively. Find the approx. percent profit earned by him.Solution
C.P of 1300 gm= Rs 1000 so CP of 780 gm= Rs 600 & SP of 780 gm = Rs 1000 % profit = `(400)/(600)` x 100 = 66.66% approx.
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Rs. 25,000 invested at simple interest of 6% p.a. yields the same interest after 2 years as Rs. 40,000 when invested at simple interest of 'y%' p.a. yie...
Rs.7800 is divided into two parts such that if one part be invested at 3% and the other at 5%, the annual interest from both the investments is Rs. 320....
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