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Subjects
Class 10MathematicsReal NumbersEuclid’s Division LemmaHardLevel 2

If a number leaves remainder 3 when divided by 20, what is the remainder when five times the number is divided by 20?

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Answer and explanation

Correct answer: 15

Step 1: Let the number be (20q+3). Step 2: For five times the number, the remainder is (5\times3=15), which is less than 20. Step 3: In multiplication, multiply the remainder and check the limit.

Tags

euclids-division-lemmamultiple-remainderhard

Frequently asked questions

What is the correct answer to this question?

15

Why is this the correct answer?

Step 1: Let the number be (20q+3). Step 2: For five times the number, the remainder is (5\times3=15), which is less than 20. Step 3: In multiplication, multiply the remainder and check the limit.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Euclid’s Division Lemma.

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