Number System
The peresent age of the father and the son are in the ratio of 8:3. After 12 years the ratio of their ages will be 2:1. What is the sum of the present age of the father and the son ?

66 years
68 years
67 years
69 years

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Number System
What is a two-digit number if the ratio of the digit at ten's place to the digit at unit's place is 4 : 3 ? (I) The sum of the digits of a two-digit number is 14. (II) The digit at unit place is 75% o

If the data either in statement (I) alone or in statement (II) alone is sufficient to answer the question.
If the data in statement (II) alone is sufficient to answer the question, while that in statement (I) alone is not sufficient.
If the data even in both statements (I) and (II) together is not sufficient to answer the question.
If the data in statement (I) alone is sufficient to answer the question while that in statement (II) alone is not sufficient.

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