Synopsis IAS

Answer

Solution

UPSC Prelims

Mathematics

Theme:

Elementary Algebra / प्रारंभिक बीजगणित

Q6 2021, Elementary Algebra

The number 3798125P369 is divisible by 7. What is the value of the digit P?

संख्या 3798125P369 अंक 7 से भाज्य है। अंक P का मान क्या है ?

Explanation

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Let's try to divide 3798125 by 7. It gives 2 as remainder.

Thus, remaining number is 2P369.

Taking P = 6 we get 26369/7 = 3767

Thus, P = 6. Thus, option (b) is correct answer.

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Q 6. 2021, Elementary Algebra

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