Sanchi prepared a 10% (mass by mass) salt solution in 320g of water Annie prepared a salt solution with - PSA - Quantitative Reasoning

Question

Sanchi prepared a 10% (mass by mass) salt solution in 320g of
water Annie prepared a salt solution with 256 gm of water, but
dissolved the same quantity of salt that Sanchi did What is the
concentration of (mass by mass) solution prepared by Annie?
a) 10
b)12 5
c) 25 6
d) 32

Karan Mittal · Accepted Answer

let amount of salt be X
so mass of solution prepared by sanchi is 320+X Now according to
question
X=10 percent of (320+X)
X=35 56
now Anita also added same amount
so mass of her solution is 256+35 56=291 56
now concentration of solution is
35 56/291 56100=12 2

Sanchi prepared a 10% (mass by mass) salt solution in 320g of water. Annie prepared a salt solution with 256 gm of water, but dissolved the same quantity of salt that Sanchi did. What is the concentration of (mass by mass) solution prepared by Annie? a) 10 b)12.5 c) 25.6 d) 32

Sanchi prepared a 10% (mass by mass) salt solution in 320g of water. Annie prepared a salt solution with 256 gm of water, but dissolved the same quantity of salt that Sanchi did. What is the concentration of (mass by mass) solution prepared by Annie?

a) 10

b)12.5

c) 25.6

d) 32