Assuming the age of the earth to be `10\"\"^(10)` yaers, the perccentage of original amount of `U\"\
Channel: Doubtnut
Date: 2020-02-16

Assuming the age of the earth to be `10\"\"^(10)` yaers, the perccentage of original amount of `U\"\"^(238)` is still in existance on earth is x/10% (nearly)(`T\"\"_(1//2)ofU\"\"^(238)is 4.5xx10\"\"^(9)`years). Then \'x\' is