In Fig.90, `A O B` is a straight line and the ray `O C` stands on it. The value of `x` is (a) 16 (b) 26 (c) 36 (d) 46

In Fig. 91, A O B\ is a straight line and 4x=5ydot The value of x is (a) 100 (b) 105 (c) 110 (d) 115

In Fig.94, if /_A O C is a straight line, then the value of x is (a) 15 (b) 18 (c) 20 (d) 16

In Fig.110, If A B C Ddot\ The value of x is (a) 122 (b) 238 (c) 58 (d) 119

In Fig.92, A O B is a straight line such that /_A O C=(3x+10)^0,\ /_C O D=50^0 and /_B O D=(x-8)^0dot The value of x is (a) 32 (b) 36 (c) 42 (d) 52

In Fig.108, if A B C D then the value of x is (a) 87 (b) 93 (c) 147 (d) 141

In Fig.109, If A B C D then the value of x is (a) 34 (b) 124 (c) 24 (d) 158

In Fig.93, if A O C is a straight line, then x= (a) ( b ) (c) (d) (e) 42^(( f )0( g ))( h ) (i) (j) (b) ( k ) (l) (m) (n) 52^(( o )0( p ))( q ) (r) (s) (c) ( d ) (e) (f) (g) 142^(( h )0( i ))( j ) (k) (l) (d) ( m ) (n) (o) (p) 38^(( q )0( r ))( s ) (t) (u)

In Fig.40, A B C D is a parallelogram of area 144 c m^2, the value of x is 8 (b) 6 (c) 9 (d) 10

In Figure, A O B is a straight line. If /_A O C+/_B O D=85^0, then /_C O D= (a)85^0 (b) 90^0 (c) 95^0 (d) 100^0

In Fig.12, two straight lines PQ and RS intersect each other at O. If /_POT=75^(@) , find the values of a,b and