Question
A machine is sold at an 8%
profit, making its selling price Rs. 63 higher than the selling price if it were sold at a 20% loss. What would the selling price be if the machine is sold at a profit of 12%?Solution
ATQ,
Let the cost price of the machine = Rs. 100y Then, according to the question, 100y × 1.08 – 100y × 0.8 = 63 Or, 108y – 80y = 63 Or, 28y = 63 So, y = (63/28) = 2.25 So, cost price of the machine = 2.25 × 100 = Rs. 225 Required selling price of the machine = 225 × 1.12 = Rs. 252
18 45 90 235 450 1125 2250
...42, 85, 172, 343, 687, 1375
1, 4, 20, 126, 1026, 10170
79, 152, 231, 314, 405, 500
Find the wrong no in the given number series.
11, 18, 32, 60, 112, 228
Find the wrong number in the given number series.
21, 11, 12, 19, 41, 105
- Find the wrong number in the given number series.
154, 137, 114, 84, 46, 11 - Find the wrong number, in the given number series.
2, 5, 11, 23, 47, 97, 191 23, 36, 53, 69, 95, 124, 155
109 106 101 94 86 74
...