If `5a+3b :2a-3b=23 :5,` then the value of `a : b` is a.`\ 1:2\ ` b. `2:1` c. `1:4` d. `4:1`

If 5a+3b:2a-3b=23:5, then the value of a:b is a.11:2backslash b.2:1 c.1:4 d.4:1

If a ,b and c are in A.P. and b-a ,c-b and a are in G.P., then a : b : c is (a). 1:2:3 (b). 1:3:5 (c). 2:3:4 (d). 1:2:4

If a ,b and c are in A.P. and b-a ,c-b and a are in G.P., then a : b : c is (a). 1:2:3 (b). 1:3:5 (c). 2:3:4 (d). 1:2:4

If A= [[1,2],[3,4]] , adjA= [[4,a],[-3,b]] , then the values of a and b are: (a) a=-2, b=1 (b) a=2, b= 4 (c) a=2, b=-1 (d) a=1, b=-2

If A : B = 1 : 2, B : C = 3 : 4 and C : D = 5 : 6, then find the value of D : C : B.

1) If A=[(1,2),(3,4)] , AdjA=[(4,a),(-3,b)] then the values of a and b are ..... a) a=-2, b=1 b) a=2, b=4 c)a=2, b=-1 d) a=1, b=-2

If the points (2,a,-1),(3,4,b)and(1,-2,3) are collinear, the values of a and b are: a) -2,-5 b) 10,5 c) 1,-5 d) 2,5

If a^(3) = 1 + 7, 4^(2) = 1 + 5 + b , 5^(3) = 1 + 8 + c , then the value of a + b + c is

If A = [(1,2),(3,4)] , adj A = [(4,a),(-3,b)] then value of a and b are : (a) a=-2,b=1 (b) a=2,b=4 (c) a=2,b=-1 (d) a=1,b=-2