If `a*b=2a-3b+a b` , then `3*5+5*3` is equal to (a) 22 (b) 24 (c) 26 (d) 28

If a*b=2a-3b+ab, then 3*5+5*3 is equal to (a)22 (b) 24 (c) 26 (d) 28

If a*b=2a-3b+ab , then 3*5+5*3 is equal to:

(2/3)^(-5) is equal to (a) ((-2)/3)^5 (b) (3/2)^5 (c) (2^-5)/3 (d) 2/(3^5)

If (a+b+2c+3d)(a-b-2c+3d)=(a-b+2c-3d)(a+b-2c-3d) , then 2b c is equal to 3/2 (b) (3a)/(2d) (c) 3a d (d) a^2d^2

If ( 3a+ 5b)/(3a- 5b) = 5 , then a: b is equal to

a^2b^3\ X\ 2a b^2 is equal to: (a) 2a^3b^4 (b) 2a^3b^5 (c) 2a b (d) a^3b^5

If a: b= 3:5 and b:c = 7:8, then 2a :3b: 8c is equal to

If A=[(5a, -b),(3,2)] and A adj A=A A^T, then 5a+b is equal to: (A) -1 (B) 5 (C) 4 (D) 13

If a : b = 5 : 2 , then ( a - b )/b is equal to : ( A ) 7/2 ( B ) 3/5 ( C ) 3/2 ( D ) 2/3