The present ratio of ages of a father and son is $5:2$. After 10 years, the ratio becomes $2:1$. Find the father's present age.
Options:
- A: 45 years
- B: 50 years
- C: 55 years
- D: 60 years
Related Practice Questions:
- Why is copper considered highly pure and extensively used in religious rituals by Hindus today according to the historical context of natural resources?
- Which of the following regions is described by R.S. Sharma as "the most coveted and contested area" fought over by important ruling powers in northern India?
- Paper currency was not used in ancient India. In which century was paper currency finally introduced to India?
- The earliest agricultural settlements and states in ancient northern India were founded along the Himalayan foothills (the "terai" route) during which period?
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