Question

The average weight of sample of $10$ apples is $52$ g. Later it was found that the weighing machine had shown the weight of each apple $10$ g less. The correct average weight of an apple is

• A. $62$ g
• B. $54$ g
• C. $56$ g
• D. $52$ g

Answer 1

The correct option is A $62$ g

The sum of weights of $10$ apples before the error was detected is $520$ g. Increase in the weight after the correction
$\left(a\right)10$ g per apple$=10\times 10$g$=100$ g.
$\therefore$ correct sum of weight$=520+100=620$ g.
Hence, correct average weight$=\frac{620}{10}=62$ g.