Question
What is the chemical name of bleaching
powder?Solution
Calcium hypochlorite, with the chemical formula Ca(OCl)â‚‚, is the active ingredient in bleaching powder, commonly used for water treatment and as a bleaching agent.
A is 6 years older than B who is four times as old as C. The total sum of the ages of A, B and C is 60. How old is B?
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The ratio of the age of ‘C’ 8 years hence from now, to the age of ‘D’ 4 years ago from now is 3:1. If the sum of their present ages is 68 years ...
- The average age of 3 brothers is 24 years. If their ages are in the ratio 5:6:7, what is the age of the eldest brother?
Amit age after 20 years will be 4 times his age 4 years back. What is the present age of Amit?
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