Question

In a can there is 99 litres of milk ,in which 9 ltrs of milk replaced with water,the remaining solution ,in that 11 ltr of milk n water repalced with water ,what is the percentage of milk after replaced...??

Answer 1

total 99ltr milk now 9 LTR water add now 90ltr milk and 9 LTR water
ratio is 10:1
now 11 LTR milk put out in which 1 LTR water and 10 LTR milk present
now 80 LTR milk and 19 LTR water are present
% of water is 100÷99×19