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ATQ,
Let the original usage be ‘x’ units and the price per unit be Rs. ‘y’.
Initial expenditure = Rs. xy
New increased price = Rs. 1.10y
Reduced usage = 0.95x
New expenditure = 1.10y × 0.95x = Rs. 1.045xy
Hence, the expenditure increases by 4.5%.
8 10 36 216 2592 62208
213, 215, 225, 257, 313, 393
32, 46, 88, 158, 256, 380
6 9 14 22 30 41
...1137, 1138, 1142, 1151, 1185, 1310
120, 146, 198, 276, 372, 510
23, 45, 115, 161, 270, 349
Find the wrong number in the given number series.
263, 133, 201, 505, 1771, 7974
1034, 2364, 4091, 6257, 9030, 12404