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- Subject
- Problems on Numbersmathematics-mcqs › problems-on-numbers
- Published
- 9 Oct 2019
- Last updated
- 28 May 2026
Explanation
Let the two-digit number be 10x + y, where x and y are digits. Given that x * y = 8 and adding 18 reverses the digits: 10x + y + 18 = 10y + x. Solving these equations, the number is 18.
More Problems on Numbers MCQs
Practice related questions from the same subject.
- 1.One number is 5 greater than another number. If their total is 19, what is the smaller number?
- 2.Ahmed buys a watch priced at Rs 600 and is required to pay a 15% sales tax. What is the total amount he has to pay?
- 3.Identify two numbers whose sum equals 28 and whose difference is 4.
- 4.A two-digit number's digits are swapped to form a new number that is 18 greater than the original. If the sum of the digits is 8, what is the original number?
- 5.Identify the number that, when multiplied by 15, results in a value that is 196 greater than the original number.
- 6.If the sum of the squares of three numbers is 138, and the sum of the products of these numbers taken two at a time is 131, what is the sum of the three numbers?
- 7.Three numbers are in the ratio 3 : 4 : 6, and their product equals 1944. What is the value of the largest number?
- 8.A number added to its square equals 182. What is the value of this number?
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