Question
Selling an item for 300 rupees is the loss of 40% of the
profit received on selling the same item for 1000 rupees. Know the purchase price of that item? (In rupees).Solution
Let the cost price of the item be Rs. x According to the question (x-300) =(1000-x) x 40/100 (x-300) = (1000-x) x 2/5 5x-1500 = 2000-2x 5x + 2x = 2000 + 1500 7x = 3500 x = 3500/7 x = 500
134, 138, 132, 142, 126, 146, 122
Find the wrong number in the given number series.
4, 8, 24, 84, 480, 2880
12, 27, 44, 68, 94
Find the wrong number in the given number series.
 289, 274, 260, 247, 235, 225
Find the wrong number in the given number series.
24, 360, 629, 3148, 15742
4, 5, 12, 39, 160, 806
Find the wrong number in the given number series.
3, 8, 15, 24, 35, 50, 63- Find the wrong number in the given number series.
50, 64, 90, 134, 190, 260 - Find the wrong number in the given number series.
25, 36, 50, 68, 92, 120 12, 14, 18, 26, 38, 64