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Let marks scored in Hindi = 18x and English = 23x
23x - 18x = 15
=> 5x = 15
=> x = 3
So, his average marks = (18x + 23x)/2 = 41x/2 = 3 * 41/2= 61.5
654, 647, 633, 612, 584, ?
32, 54, 88, 158, ?, 838
What will come in place of the question mark (?) in the following series?
2.5, 6.5, 18.5, 54.5, 162.5, 486.5, ?
115% of 800 - 4/5 of 320 + 82% of 700 = ? – 102% of 500
12, 12, 30, 120, ?, 4620
15.5, 62, 186, ?, 2232, 8928
51 26 27 ? 86 217.5
6, 7, 15, 46, 185, ?
26, 227, 628, 1229, ?, 3031
What will come in place of the question mark (?) in the following series?
15, 16, 25, 50, 99, 180, ?
