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Class 7 · Mathematics · Ganita Prakash

4. Expressions using Letter-Numbers

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The perimeter of a square of side s is

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Answer and explanation

Answer: B. 4s

A square has 4 equal sides.

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Try question 2

If x = 3, the value of 2x + 1 is

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Answer and explanation

Answer: B. 7

2 × 3 + 1 = 7.

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Try question 3

'5 more than a number n' is written as

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Answer and explanation

Answer: B. n + 5

Add 5 to n.

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All 5 questions of this chapter, with explanations →