Question
The present ages of Grandmother and Grandfather are in
6:8 if the ratio of Grandmother age after 8 years and Grandfather age after 4 years becomes 5:7 then find the age of Grandmother before 20 years?Solution
By using Cross product method We get present age of Grandmother is 108 20 years before 108-20 = 88-year ans.
The headquarter of Insurance Regulatory and Development Authority of India (IARDA) is located at
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रॉक फास्फेट की खान कहाँ पर स्थित है ?
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