The greatest number of four digits that have 144 for their HCF is___________?
Correct answer: D. 9936
- A. 9930
- B. 9903
- C. 9935
- D. 9936
Explanation
The greatest four-digit multiple of 144 is obtained from 144 x 69 = 9936; the next multiple, 144 x 70 = 10080, has five digits. Therefore 9936 is the greatest possible number. A common mistake is 9930, which is close to 10000 but is not a multiple of 144.
Last updated
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.
Exams that ask Mathematics questions like this
Mathematics is on 67 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.