6 mariana sells bags of bird food.
the bags that mariana sold last week each contained 12 kg of seeds.
the bags that she is going to sell next week will cach contain a mixture of nuts and seeds
where for each bag
weight of nuts: weight of seeds = 4:5
the total weight of the nuts and the seeds in each bag will be 19.35 kg
the weight of seeds in each bag that mariana sells next week will be less than the weight
of seeds in each bag that mariana sold last week.
work out this decrease as a percentage of the weight of seeds in each bag that mariana
sold last week.
give your answer correct to one decimal place.