25% of x is equal to 35% of y, then x : y equals to :
5 : 7
7 : 5
13 : 15
15 : 13
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0.5 of a number is equal to 0.07 of another. The ratio of the numbers is :
1 : 14
7 : 50
50 : 7
If 2p = 3q = 4r then p : q : r is equal to:
2 : 3 : 4
3 : 4 : 6
4 : 3 : 2
6 : 4 : 3