A table is available for Rs.350 or for Rs. 150 cash down payment together with Rs.230 to be paid after two months. Find the rate of interest charged under this scheme.
Amount as a principal for first and second month = 350 - 150 = Rs. 200 Now, Interest = 230 - 200 = Rs.30 30 = 200 × 2 × R/ (100 × 12) r = 90%
The area of a square is 38 sq. cm more than the area of a rectangle of length 19 cm and breadth 17 cm. What will be the area of incircle of the square?
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