Practice and Revision - Unitary Method
Let us practise and revise what we learned about unitary method. The unitary method helps us find the value of a single unit first, then use
Core concept
To use the unitary method, we first find the value of one unit (like the cost of one item) by dividing the total by the quantity.
How it works
Once we know the value of one unit, we multiply by the quantity we need to find the total value.
Why it matters
For example, if 5 pens cost ₹50, one pen costs ₹10 (50÷5), so 8 pens would cost ₹80 (10×8).
Key detail
The unitary method is useful for solving many real-life problems involving cost, time, speed, and work calculations.
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Quick notes
• The unitary method finds the value of one unit first.
• We divide total by quantity to find one unit's value.
• Then we multiply by the needed quantity.
• 5 pens for ₹50 means 1 pen costs ₹10.
• 8 pens would then cost ₹80.
• This method helps with cost problems.
• It also helps with time and speed problems.
• It's a versatile problem-solving method.