Question

4. How many litres of water must be added to 20 litres of 10% solution of salt and water to produce a 6%
5 3
+
7x 14
7
+ 3, X+0.
2x
1
Hint. Let - = y
Х
solution ?
ni anales is 20° larger than 4 times the other, find the angles.
anale R. Find 2 P and LR​

Answer 1

Answer:

please refers to the image given above