4 19 49 94 154 ?

106 xx 106 + 94 xx 94 = ?

154. 6 : 29 : : 24 : ?

190, 94, 46, 22, ?, 4

What will come in place of the question mark (?) in the following number series? 13, 19, 31 ,49, 73 (?)

In Fig.98, If AB is parallel to CD and EF is a transversal, then x= (a) 19 (b) 29 (c) 39 (d) 49

In Fig.98, If AB is parallel to CD and EF is a transversal, then x= (a) 19 (b) 29 (c) 39 (d) 49

The HCF of 66, 198 and 154 is _____.

The area of the largest circle, that can be drawn inside a rectangle with sides 18 cm by 14 cm, is (a) 49 cm2 (b) 154 cm2 (c) 378 cm2 (d) 1078 cm2