## Lakshya Education MCQs

Question: If A : B = 3 : 4 and B : C = 8 : 9, then A : B : C is = ?
Options:
 A. 8 : 6 : 9 B. 9 : 8 : 6 C. 6 : 8 : 9 D. 3 : 32 : 9

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## More Questions on This Topic :

Question 1. If 2A = 3B = 4C, the A : B : C is = ?
1.    2 : 3 : 4
2.    4 : 3 : 2
3.    6 : 4 : 3
4.    3 : 4 : 6
Question 2. If p : q : r = 1 : 2 : 4, then $$\sqrt {5{p^2} + {q^2} + {r^2}}$$    is equal to -
1.    5
2.    2q
3.    5p
4.    4r
Question 3. X, y, z, u are real numbers such that x : y = y : z = z : u and x : u = 64 : 27. the value of x : z is -
1.    64 : 27
2.    16 : 9
3.    4 : 3
4.    3 : 4
Question 4. If a and b are rational numbers and $$a + b\sqrt 3$$   $$=$$ $$\frac{1}{{2 - \sqrt 3 }}{\text{,}}$$   then a : b is equal to = ?
1.    2 : 1
2.    2 : 3
3.    $$\sqrt 3$$ : 1
4.    - $$\sqrt 3$$ : 1
Question 5. If a : (b + c) = 1 : 3 and c : (a + b) = 5 : 7, then b : (a + c) is equal to.
1.    1 : 2
2.    2 : 3
3.    1 : 3
4.    2 : 1
Question 6. If A : B : C = 2 : 3 : 5 and A = x% of (B + C), then x is equal to -
1.    20
2.    24
3.    25
4.    28