Numerical Ability Quiz 6
Practice quiz on Numerical Ability (General Aptitude). 5 real exam questions.
About This Quiz
Numerical Ability Quiz 6 — Questions with Solutions
All 5 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.Two taps can fill a tank in 20 min and 30 min respectively. A third tap empties it in 60 min. How long will it take to fill the tank if all operate together?
- A.15 min
- B.20 min
- C.18 min
- D.12 min
Show answer
Answer: C. 18 min
Net rate = 1/20 + 1/30 − 1/60 = 1/18 tank per minute.
Q2.Find the value of x? (I) 2x + 3 = 19 (II) x² − 16 = 0
- A.I alone
- B.II alone
- C.Either I or II
- D.Both together
Show answer
Answer: C. Either I or II
Each statement independently yields a unique value for x (x = 8 from I, x = ±4 from II), so either suffices.
Q3.Increase 20%, then discount 20%. Net effect?
- A.4% loss
- B.0%
- C.4% gain
- D.2% loss
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Answer: A. 4% loss
Loss=4%.
Q4.Simplify: 45 ÷ 5 × 3
- A.9
- B.21
- C.27
- D.30
Show answer
Answer: C. 27
45 ÷ 5 = 9; 9 × 3 = 27.
Q5.What is the position of the Blue box from the top?
- A.5th
- B.4th
- C.3rd
- D.6th
Show answer
Answer: A. 5th
Counting from the top, the Blue box is in the 5th position.
Frequently Asked Questions
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Numerical Ability Quiz 6 runs on a 1-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
Are detailed solutions provided?
Yes. Every question on Numerical Ability Quiz 6 ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.
Can I attempt Numerical Ability Quiz 6 multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
Numerical Ability questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.