Question
58 notebooks have been purchased at the rate of 1 Rs.
How many notebooks should be sold at the rate of Rs 1 to earn 45% profit?Solution
CP of 1 notebook = 1/58 Rs. SP of 1 notebook = 1/58 * 145% = 145/5800 Rs. Hence number of notebook must ne sold in 1 Rs. = 1/ (145/5800) = 5800 /145 = 40 Alternate Solution: Reuired result = Number of articles bought × 100/(100+Profit)  = 58×a (100/145) = 40
Find the wrong no in the given number series.
2, 4, 8, 16, 33, 64
Find the wrong number in given number series.
2372, 2356, 2320, 2256, 2156, 2048.
- Find the wrong number in the given number series.
25, 34, 18, 34, 9, 46 112, 119, 133, 154, 180, 217
135, 148, 109, 174, 87, 200Â
128, 173, 196, 189, 176, 133
Find the wrong number in the given number series.
7, 9, 16, 12, 25, 15, 365, 13, 41, 185, 1111, 8149
Find the wrong number in the given number series.
102, 124, 160, 212, 289, 410
 16, 19, 28, 44, 76, 140, 268