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In 1766, Henry Cavendish was the first to recognize hydrogen gas as a discrete substance, by naming the gas from a metal-acid reaction "inflammable air".
Find the wrong number in the given series.
12, 18, 27, 42, 62, 87
1512?9216
...8 20 36 56 80 ?
19, 37, 65, 91, 127, 169
100 221 77 245 50 275
205 255 292 ? 335 345
...Three series are given below. You have to find the values of P, Q and R, then establish a relationship among them.
I: 210, P , 233, 64...
2, 12, 36, 80, ?, 252
The number of terms in the sequence 5, 20, 80, 320,……………., 5120 is:
Select the number from among the given options that can replace the question mark (?) in the following series.
64, 60, 52, 40, ?, 4
