RFT

This page lists questions and answers that were posted by visitors named RFT.

Questions

The following questions were asked by visitors named RFT.

Have two tanks of 100 liters each, with salt solution. One is at 9% and 4% other. How many liters at least must be removed from each container, so that upon mixing which is removed to obtain a 7% solution of salt concentration?
12 years ago

Answers

The following answers were posted by visitors named RFT.