The value of sec2 45˚ + 2 tan 135˚ is –

Four terms are in proportion. The first, second and fourth terms are 4, 22, and 33. Find the third term.

4              7              24           91           462         2763

A series is 11, 20, 42, 82, 166, 330

12, 24, 72, 288, 1440, ?

60    61    126    387   ?     7845

315 146 267 ? 235 210

Three series are given below. You have to find the values of P, Q and R, then establish a relationship among them.

28 34 63 ? 769 3847

105      107      111      114      ?      127

4 5.5 19 .5 98.5 694 6251.5