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Problem SolvingGrade 5-10

How to Solve Word Problems in Maths: A Step-by-Step Method

✍️By The Practise Ground TeamπŸ“…20 February 2026⏱️8 min readShare
Solve Word Problems infographic showing RUCSAC method flowchart on dark navy background

Word problems intimidate many students. But here's a secret: a word problem is just a story told in words with numbers sprinkled in. Your job is to extract the mathematical meaning and solve it.

Let's learn a systematic approach that works for every problem, from Grade 5 to Grade 10, across CBSE, ICSE, Cambridge, and beyond.

The RUCS Method

Word problems become manageable when you follow a consistent process. RUCS stands for:

R β€” Read the problem carefully U β€” Understand what's being asked C β€” Choose operations and Create equations S β€” Solve and Verify your answer

Step 1: READ (R)

Read the problem at least twice. The first time, read for general understanding. Don't panic about numbers yetβ€”just understand the story.

Example Problem: "Aisha buys 3 books for Rs. 480 each and 5 notebooks for Rs. 60 each. How much does she spend in total?"

First reading: Aisha is buying books and notebooks. I need to find the total cost.

Step 2: UNDERSTAND (U)

Now, identify the critical information:

  • What do I know? (Given information)
  • What am I looking for? (The question)
  • What's irrelevant? (Extra information that doesn't matter)
For our example:
  • Known: 3 books at Rs. 480 each, 5 notebooks at Rs. 60 each
  • Finding: Total cost of everything
  • Irrelevant: None in this problem
  • Operation: Multiplication and addition
  • Step 3: CHOOSE AND CREATE (C)

    Decide which mathematical operations you need. Convert the words into mathematical language.

    Common word patterns:
    Word PatternOperationExample
    "altogether", "total", "in all"AdditionTotal cost = cost of books + cost of notebooks
    "more than", "less than", "fewer"Addition/SubtractionIf A has 5 more than B, then A = B + 5
    "times", "each", "per"Multiplication3 books at Rs. 480 each = 3 Γ— 480
    "divided equally", "shared"DivisionIf 20 apples are shared among 4 children, each gets 20 Γ· 4
    "per", "rate of"DivisionSpeed = distance per time
    For our example:
  • Books cost: 3 Γ— 480 = Rs. 1,440
  • Notebooks cost: 5 Γ— 60 = Rs. 300
  • Total: 1,440 + 300
  • Step 4: SOLVE AND VERIFY (S)

    Do the calculation carefully and double-check!

    For our example:
  • 3 Γ— 480 = 1,440
  • 5 Γ— 60 = 300
  • Total = 1,440 + 300 = 1,740
  • Verify: Does this answer make sense?
  • 3 books at Rs. 480 each is definitely over Rs. 1,000 βœ“
  • Adding notebooks increases the total βœ“
  • The answer seems reasonable βœ“
  • Common Word Problem Types

    Type 1: Simple Arithmetic Problems

    "A farmer has 45 hens and 30 goats. How many animals does she have in total?"

  • Operation: 45 + 30 = 75 animals
  • Type 2: Comparison Problems

    "Raj scored 85 marks. His sister scored 12 marks more. How much did his sister score?"

  • Given: Raj's score = 85, sister's score = 12 more
  • Operation: 85 + 12 = 97 marks
  • Type 3: Rate and Ratio Problems

    "A car travels 60 km per hour. How far does it travel in 5 hours?"

  • Known: Speed = 60 km/hour, Time = 5 hours
  • Operation: Distance = Speed Γ— Time = 60 Γ— 5 = 300 km
  • Type 4: Multi-step Problems

    "A book costs Rs. 250. A student buys 4 books and pays with Rs. 1,200. How much change does she get?"

  • Step 1: Total cost = 4 Γ— 250 = Rs. 1,000
  • Step 2: Change = 1,200 - 1,000 = Rs. 200
  • Type 5: Percentage Problems

    "A shirt originally costs Rs. 800. It's on sale for 25% off. What's the final price?"

  • Discount = 25% of 800 = 0.25 Γ— 800 = Rs. 200
  • Final price = 800 - 200 = Rs. 600
  • Type 6: Ratio and Proportion

    "In a class, the ratio of boys to girls is 3:2. If there are 15 boys, how many girls are there?"

  • Boys : Girls = 3 : 2
  • 3 units = 15 boys, so 1 unit = 5
  • 2 units = 2 Γ— 5 = 10 girls
  • Type 7: Age Problems

    "A father is 40 years old. His son is 12 years old. After how many years will the father be twice as old as the son?"

  • Let x = number of years
  • Father's age then: 40 + x
  • Son's age then: 12 + x
  • Equation: 40 + x = 2(12 + x)
  • 40 + x = 24 + 2x
  • 40 - 24 = 2x - x
  • 16 = x
  • After 16 years
  • Common Mistakes in Word Problems

    Mistake 1: Misreading the question
  • Problem: "A store has 50 apples and sells 20. The remaining apples..." and you solve for sold apples instead of remaining.
  • Fix: Circle or highlight the actual question before solving.
  • Mistake 2: Using wrong units
  • Problem: "A person walks 2 km in 30 minutes. How far in 2 hours?"
  • Wrong: 2 Γ— 2 = 4 km (you forgot to convert minutes to hours properly)
  • Right: 2 km in 0.5 hours, so 2 Γ— 4 = 8 km in 2 hours
  • Mistake 3: Not checking if the answer makes sense
  • Problem: "A student scored 120 marks out of 100."
  • This is impossible! The answer is clearly wrong.
  • Mistake 4: Ignoring important words
  • "Less than", "more than", "at least", "at most" change the entire problem.
  • "How much less did Ali score than Zara?" requires subtraction, not addition.
  • Strategies for Tough Problems

    Strategy 1: Work Backwards If you don't know how to start, work backwards from the answer. Strategy 2: Use Variables Define unknowns clearly:
  • Let x =
  • Let y =
  • Then write relationships as equations
  • Strategy 3: Make a Table Organize information visually, especially for comparison problems. Strategy 4: Draw a Diagram Many geometry and spatial problems become clear with visual representation. Strategy 5: Check with Estimation Before calculating, estimate the answer. Does your final answer match your estimate roughly?

    Real Exam Scenarios

    CBSE/ICSE Style Question: "The cost of a pen is Rs. x and the cost of a notebook is Rs. y. If 3 pens and 2 notebooks cost Rs. 80 total, and a pen costs Rs. 10, find the cost of a notebook."
  • Given: 3x + 2y = 80, x = 10
  • Substitute: 3(10) + 2y = 80
  • 30 + 2y = 80
  • 2y = 50
  • y = 25
  • The notebook costs Rs. 25.

    Cambridge IGCSE Style: "A factory produces 200 items daily. If 5% are defective and defective items cost Rs. 50 to replace, what's the replacement cost per week?"
  • Defective per day: 5% of 200 = 10
  • Per week: 10 Γ— 7 = 70
  • Cost: 70 Γ— 50 = Rs. 3,500
  • Practice on The Practise Ground

    Word problem mastery comes from solving diverse problems. Our interactive quizzes include:

  • Multi-step word problems with detailed solutions
  • Problems across all Grade 5-10 levels
  • Real-world scenarios with visual aids
  • Instant feedback on errors
  • Practice regularly and watch your problem-solving confidence soar!

    FAQ

    How do I know which operation to use?

    Look for keywords! "Total" β†’ add, "left" β†’ subtract, "each" β†’ multiply, "shared" β†’ divide. Create a keywords reference sheet.

    What if a problem has multiple steps?

    Break it into smaller problems. Solve one step at a time. Write intermediate answers clearly.

    How should I manage word problems in exams?

    Read twice (once for understanding, once for details). Write the equation clearly. Show all steps. Verify your answer if time permits.

    Why are word problems important if we can just calculate?

    Word problems teach problem-solving thinking. In real life, you don't see "calculate 3 Γ— 5." You see scenarios requiring you to identify what needs calculating. This skill is invaluable.

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