84, 61, 80, 57, 76, ?
512 493 476 ? 448 437 .
7 15 31 63 127 ?
...6 3.5 2.5 ? 8.5 23.75
...640 322 164 86 48 ?
...Find the value of c.
-3 -2 -12 -9 -100 -375
31 a �...
21, 37, 62, 98, 147, ?
Three series are given below. You have to find the values of P, Q and R, then establish a relationship among them.
I: 840, P , 584, 456, 5...
111 113 117 120 ? 133
64 66 76 126 376 ?
...