9. A milkman had water and milk mixture in a can with water to milk ratio 5:7. He accidently spills 9 litres of the mixture. He then fills the can with water equal in quantity to spilled mixture. This makes the milk ratio b. 24 litres water to 9:7. How much milk did the initially have? can a. 21 litres c. 16 litres d. 20 litres
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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