# The difference between the radi of the smaller circle and the bigger circle is 7cm and the difference between the area of two circles is 1078Sq.cm Radius of the smaller circle is _____ ? with Answer - Maths Mcqs | TestPrep

> Solved MCQ: The difference between the radi of the smaller circle and the bigger circle is 7cm and the difference between the area of two circles is 1078Sq.cm Radius of the smaller circle is _____ ? Correct Answer: D. None of these. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

---

Tested in Competitive Exams:

- [NTS Test Prep](https://test-prep.blog/exams/nts)
- [FPSC Past Papers](https://test-prep.blog/exams/fpsc)
- [PPSC Solved MCQs](https://test-prep.blog/exams/ppsc)
- [PMDC MDCAT 2026](https://test-prep.blog/exams/mdcat)
- [UET ECAT Prep](https://test-prep.blog/exams/ecat)
- [CSS Central Superior](https://test-prep.blog/exams/css)

- [Maths Mcqs](https://test-prep.blog/categories/maths-mcqs)
Difficulty: Moderate 64% Accuracy

# The difference between the radi of the smaller circle and the bigger circle is 7cm and the difference between the area of two circles is 1078Sq.cm Radius of the smaller circle is _____ ?

Direct Answer & Quick Reference

The correct option is **D. None of these**.

A. 17.5cm

B. 21cm

C. 28cm

D. None of these **(Correct Answer)**

✨ Explain with AI

Verified Key: D. None of these
Solved by 3,539+ students

Verified against official examination board answer keys and standard curriculum textbooks.

- [Previous Question Probability of something in interest rate of XXX?](https://test-prep.blog/mcq/probability-of-something-in-interest-rate-of-xxx-06dd765a-662a-4545-ac06-2a9e2fc8ae2d)
- [Next Question 80% of 700 = _____ ?](https://test-prep.blog/mcq/80-of-700-648a61c6-3a24-4eb4-b9d1-dfa2c67717bc)

- [Practice More Maths Mcqs MCQs](https://test-prep.blog/quiz/smart?category=maths-mcqs)
- [How We Verify Questions →](https://test-prep.blog/editorial-policy)

## Subject Overview

Explore thousands of solved past paper MCQs for Maths Mcqs categorized with explanations.

- [Browse All Maths Mcqs MCQs →](https://test-prep.blog/categories/maths-mcqs)

## Related Questions

- [Probability of something in interest rate of XXX?](https://test-prep.blog/mcq/probability-of-something-in-interest-rate-of-xxx-06dd765a-662a-4545-ac06-2a9e2fc8ae2d)
- [80% of 700 = _____ ?](https://test-prep.blog/mcq/80-of-700-648a61c6-3a24-4eb4-b9d1-dfa2c67717bc)
- [P is 5 times as large as Q, the percent that Q is less than P is _____ ?](https://test-prep.blog/mcq/p-is-5-times-as-large-as-q-the-percent-that-q-is-less-than-p-is-2aa30125-1a25-4995-be9a-239efbd0e4ac)
- [Who was Blaise Pascal?](https://test-prep.blog/mcq/who-was-blaise-pascal-60c7bd2a-6220-4b50-8938-ef5b51d11acc)
- [If n(U)=60, n(A)= 35, n(B)=24, and n(AUB)’=10 then n(A∩B) is _____ ?](https://test-prep.blog/mcq/if-nu60-na-35-nb24-and-naub10-then-nab-is-0acfb633-a6ac-49dd-b37f-d272f915d881)

---
*Source: https://test-prep.blog/mcq/the-difference-between-the-radi-of-the-smaller-circle-and-the-bigger-circle-is-7-6baf1e7a-a906-4c0a-b881-ea0895a15dab*
*Format: Markdown for Agents (Content Negotiation: text/markdown)*