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Sorghum is a tall and sturdy crop that provides a good canopy cover, which helps in reducing soil erosion. Greengram, being a leguminous crop, fixes atmospheric nitrogen and improves soil fertility. This combination can provide good soil protection and nutrient cycling.
The ratio of age of A and his son is 8:5. If the difference of their ages 8 year ago is 15, then find the sum of ages of A and his son 10 year hence.
The respective ages of a mother and her daughter are 30 and 8 years. In how many years will the mother be thrice as old as her daughter?