Double-digit 5631
Write how many double-digit numbers there are, which, if we multiply by four, we get the result ending in two zeros.
Correct answer:

Tips for related online calculators
Would you like to compute the count of combinations?
You need to know the following knowledge to solve this word math problem:
combinatoricsalgebrabasic operations and conceptsnumbersGrade of the word problem
Related math problems and questions:
- Unknown number x
If I multiply the unknown number by 4 and subtract 8.4 from the result, I get the same number as if I multiply the unknown number by 3 and add 15.1 to the result. Determine the unknown number. Write the result as a decimal.
- Multiply 63734
What result do we get if we multiply 1/5 of 600 by three and divide the result by 1/10 of 100?
- Properties: 2736
Find four numbers whose sum is 48 and which have the following properties: if we subtract 3 from the first, add 3 to the second, multiply the third by three, and divide the fourth by three, we get the same result.
- Remaining 82238
I'm thinking four digits. The thousands digit is three times larger than the hundreds digit, which is two times larger than the tens digit. The remaining digits are zeros.
- Fraction 82713
Find a natural number about which: if we subtract 2 from this number and divide the result by three, we get a fraction less than 1
- Multiply 2700
I think the number. If I add five and multiply the result by 7, I get 245. Which is it?
- Phone number
Ivan's phone number ends with a four-digit number: When we subtract the first from the fourth digit of this four-digit number, we get the same number as when we subtract the second from the third digit. If we write the four-digit number from the back and