Question

At the age of 20 weeks, Zoe weighed 16 lb 4 oz. Her birth weight was about 33 1/3% of her 20- week weight. To the nearest ounce, what was her birth weight?

Answer 1

b=(100/300)(16*16+4)

b=(100/300)260

b= 86 2/3 oz

b=87 oz (to nearest oz)