# Two pipes function simultaneously the reservoir will be filled in 12 hours. One pipe fills reservoir 10 hours faster than the other. How many hours does the faster pipe take to fill the reservoir? with Answer - Maths Mcqs | TestPrep

> Solved MCQ: Two pipes function simultaneously the reservoir will be filled in 12 hours. One pipe fills reservoir 10 hours faster than the other. How many hours does the faster pipe take to fill the reservoir? Correct Answer: C. 20 hrs. 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: Easy 83% Accuracy

# Two pipes function simultaneously the reservoir will be filled in 12 hours. One pipe fills reservoir 10 hours faster than the other. How many hours does the faster pipe take to fill the reservoir?

Direct Answer & Quick Reference

The correct option is **C. 20 hrs**.

A. 25 hrs

B. 28 hrs

C. 20 hrs **(Correct Answer)**

D. 35 hrs

Verified Key: C. 20 hrs
Solved by 5,098+ 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/two-pipes-function-simultaneously-the-reservoir-will-be-filled-in-12-hours-one-p-940d8791-a730-47dc-94b4-34149403618f*
*Format: Markdown for Agents (Content Negotiation: text/markdown)*
