how much water must be added to 136 lbm of salt to give an 8

how much water must be added to 1.36 lbm of salt to give an 8.3% salt solution

Here given weight of salt is 1.36 lbm

and desired salt percentage = 8.3% = 0.083

we know that salt percentage = (weight of salt)/(total weight)

0.083 = 1.36/total weight

total weight = 16.3855 lbm

weight of water to be added = total weight - weight of salt

= 16.3855-1.36

= 15.0255 lbm