exam Maths Puzzle Numerical Ability

5.7d=3.2d-8

Read Solution (Total 0)

exam Other Question

the sum of the digits of a two-digit nimber is 12. the value of the number is five more than 10 times the tens digit. find the number Anna has 6 liters of 60% acid. How much water should she add to make a solution that is 40% acid?