sir i have twin girls and they both are 5 months 10 days old ......what should b their normal weight and height?

A. Well that is going to be completely dependent on the birth weight of the kids as to what should be the current weight gain I would say about 4 to 500 g every month if you calculate it should be somewhere around two KG to 2 1/2 KG for both your kids more than the birth weight weight