PPSCFPSCNTSPakistan govt jobs
- Subject
- Mathematics Mcqsmathematics-mcqs
- Published
- 8 Jul 2019
- Last updated
- 28 May 2026
Explanation
Since the average age stayed the same over 2 years for 9 members, the total age difference caused by replacing one member must offset the 2-year increase for all members. Calculating 9 members × 2 years = 18 years shows the new member is 18 years younger than the old member.
More Mathematics Mcqs
Practice related questions from the same subject.
- 1.What is 80 percent of 700?
- 2.If the value of P is five times greater than Q, by what percentage is Q smaller than P?
- 3.What was the profession of Blaise Pascal?
- 4.Given that the total number of elements in set U is 60, with n(A) = 35, n(B) = 24, and the complement of n(A ∪ B) equals 10, what is the value of n(A ∩ B)?
- 5.Naeem sold a computer for Rs 25,000 and incurred a loss of 20%. What was the original purchase price of the computer?
- 6.How many centimeters are equivalent to 1 inch?
- 7.Calculate the average (arithmetic mean) of the numbers: 3, 6, 9, 12, and 15.
- 8.A truck travels 100 km in 2 hours and 30 minutes. If a car moves at a speed of 55 km/h, what is the ratio of the truck's speed to the car's speed?
Subcategories
- Areas
- Arithmetic Mcqs
- Average Mcqs
- Basic Maths Mcqs
- Boats and Streams
- Compound Interest
- Discount Mcqs
- Height and Distance Mcqs
- Math Solutions
- Men Food Mcqs
- Mensuration
- Mixtures and Allegations
- Odd Man Out Series Mcqs
- Partnership
- Percentage Mcqs
- Permutations and Combinations
- Pipes and Cisterns
- Probability
- Problems on L.C.M and H.C.F
- Problems on Numbers
- Profit and Loss Mcqs
- Quadratic Equations
- Races and Games
- Ratio and Proportion
- Simple Equations
- Simplification and Approximation
- Stocks and Shares Mcqs
- Time & Distance Mcqs
- Time and Work Mcqs
- Volume and Surface Area Mcqs
- Volumes
- interest Mcqs