1Pair of Linear Equations in Two VariablesCompetency Based
A pen and a notebook together cost Rs 50. If the notebook costs Rs 30, find the cost of the pen.
Answer
Rs 20.
Solution
Let pen cost be x. Then x + 30 = 50, so x = 20.
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CBSE Class 10 Maths Basic
Competency Based Questions
Free CBSE Class 10 Mathematics Basic 241 competency based questions for application and board-style understanding.
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Chapter-wise Competency Based Questions
1Real Numbers2Polynomials3Pair of Linear Equations in Two Variables4Quadratic Equations5Arithmetic Progressions6Coordinate Geometry7Triangles8Circles9Introduction to Trigonometry10Trigonometric Identities11Heights and Distances12Areas Related to Circles13Surface Areas and Volumes14Statistics15Probability
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All Competency Based Questions
2Coordinate GeometryCompetency Based
A student walks from point A(1, 1) to B(1, 6). How far does the student walk?
Answer
5 units.
Solution
The x-coordinate is same, so vertical distance is 6 - 1 = 5 units.
3Arithmetic ProgressionsCompetency Based
A student saves Rs 10 on day 1, Rs 20 on day 2 and Rs 30 on day 3. If this pattern continues, how much will the student save on day 5?
Answer
Rs 50.
Solution
The savings form an AP with a = 10 and d = 10. The 5th term is 10 + 4 x 10 = 50.