Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are__________?
Correct answer: D. 12, 24, 36
- A. 4, 8, 12
- B. 5, 10, 15
- C. 10, 20, 30
- D. 12, 24, 36
Explanation
The ratio 1:2:3 has H.C.F. 1, so multiplying every term by 12 gives numbers 12, 24 and 36. Their H.C.F. is 12, as required. The option 10, 20, 30 is a likely choice from multiplying by 10 instead of the given H.C.F.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Ratio and Proportion
Ratios compare quantities in the same units, while proportions state that two ratios are equal. Problems cover simplification, division in a given ratio, direct and inverse variation, scale, and missing terms, with attention to the difference between a ratio and a fraction representing part of a whole.
Practise Arithmetic
1,060 free Arithmetic MCQs from Mathematics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Mathematics questions like this
Mathematics is on 76 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Ratio and Proportion questions
The ratio of numbers is 3:4 and their H.C.F is 4. Their L.C.M is__________?
The sum of two numbers is 528 and their H.C.F is 33. The number of pairs of numbers satisfying the above conditions is__________?
The product of two numbers is 4107. If the H.C.F of these numbers is 37, then the greater number is_________?
H.C.F of 3240, 3600 and a third number is 36 and their L.C.M is 24 * 35 * 52 * 72. The third number is___________?
The G.C.D of 1.08, 0.36 and 0.9 is________?
Find the lowest common multiple of 24, 36 and 40.