0.5 of a number is equal to 0.07 of another. The ratio of the numbers is :

1. 1 : 14

2. 5 : 7

3. 7 : 50

4. 50 : 7

25% of x is equal to 35% of y, then x : y equals to :

1. 5 : 7

2. 7 : 5

3. 13 : 15

4. 15 : 13

If 2p = 3q = 4r then p : q : r is equal to:

1. 2 : 3 : 4

2. 3 : 4 : 6

3. 4 : 3 : 2

4. 6 : 4 : 3

If $\dfrac{a}{3} = \dfrac{b}{4} = \dfrac{c}{7}$, then $\dfrac{a + b + c}{c}$ = ?

1. $\dfrac{1}{2}$

2. $\dfrac{1}{7}$

3. 2

4. 7