PPSCFPSCNTSPakistan govt jobs
- Subject
- Ratio and Proportionmathematics-mcqs › ratio-and-proportion
- Published
- 10 Oct 2019
- Last updated
- 28 May 2026
Explanation
Let the common multiplier be x. Since the ratio of boys to girls is 7:8, the total students can be expressed as 7x + 8x = 15x. Given that the total number of students is 90, we have 15x = 90, which gives x = 6. Therefore, the number of boys is 7x = 7 × 6 = 42.
More Ratio and Proportion MCQs
Practice related questions from the same subject.
- 1.A class has a ratio of males to females of 3 to 5. If there are 24 students in total, how many of them are female?
- 2.What is the simplified ratio of the salaries of Faheem, Imran, and Naveed if Faheem earns 80,000 rupees, Imran earns 70,000 rupees, and Naveed earns 50,000 rupees?
- 3.If two numbers have a ratio of 5 to 4 and their difference is 10, what is the greater number?
- 4.If M, N, and O invest capital in the ratio 2:3:5 and the duration of their investments are in the ratio 4:5:6, how should the profit be shared among them?
- 5.A collection of coins consists of 50 paise, 1 rupee, and 2 rupee coins in the ratio 2:5:8. If the combined value of all the coins is Rs. 352, what is the total count of coins present?
- 6.Given three variables X, Y, and Z that satisfy the equation XY = kZ, where k is a constant, initially X is 4 and the ratio X:Y:Z is 2:3:4. If Y is changed to 12 while Z remains unchanged, what is the new value of X?
- 7.What is the mean proportional value between 5 and 45?
- 8.Given the ratios X:Y = 2:3 and Y:Z = 4:5, determine the combined ratio X:Y:Z.
More in Mathematics Mcqs
- 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
- Simple Equations
- Simplification and Approximation
- Stocks and Shares Mcqs
- Time & Distance Mcqs
- Time and Work Mcqs
- Volume and Surface Area Mcqs
- Volumes
- interest Mcqs