If `a+2b=6` and `a b=4` , then what is `2/a+1/b` ? (a)`1/2` (b) `1/3` (c) `3/2` (d) `2` (e) `5/2`

If (a)/(b)=(4)/(3), then (3a+2b)/(3a-2b)=?( a) -1 (b) 3 (c) 5(d)6

If a b+b c+c a=0 , then what is the value of (1/(a^2-b c)+1/(b^2-c a)+1/(c^2-a b)) ? (a) 0 (b) 1 (c) 3 (d) a+b+c

If (a)/(b)=(1)/(3),backslash(b)/(c)=2,backslash(c)/(d)=(1)/(2),backslash(d)/(e)=3 and (e)/(f)=(1)/(4), then what is the value of (abc)/(def)?(1)/(4) (b) (3)/(4)(c)(3)/(8)(d)(27)/(4) (e) (27)/(8)

If a :(b+c)=1:3 a n d c :(a+b)=5:7, t h e b :(a+c) is equal to 1:2 b. 1:3 c. 2:3 d. 2:1

If log_(4)5=a and log_(5)6=b, then log_(3)2 is equal to (1)/(2a+1) (b) (1)/(2b+1)(c)2ab+1(d)(1)/(2ab-1)

If a+b=2c, then the value of (a)/(a-c)+(b)/(b-c) is (1)/(2)(b)1(c)2(d)3

If A = {1,3,5},B = {2,4,6}, what is A cap B ?

If a : b = 1 1/2 : 2 1/4 and b : c = 2 : 3 1/2 then what is a:b:c equal to ?

If (4b^(2)+(1)/(b^(2)))=2, then (8b^(3)+(1)/(b^(3)))=? (a) 0 (b) 1 (c) 2 (d) 5