Where in the body will you find a digit?
fingers and toes
The units digit of a two digit number exceeds twice the tens digit by 1 what numbers if the sum of its digit is 10?
Assume the decimal starts recurring immediately after the decimal point. (If the recurring string starts after k digits, then you want to find the (2001-k)th digit instead.) Find the length of the recurring string = L Find the remainder when 2001 is divided by L = R The 2001st digit is the Rth digit in the recurring string.
If the units digit and the hundreds digit of the number 513 were reversed find the sum of the original number and the new number?
Look for the first digit that is different. In this case, the first digit after the decimal point. The number that has the larger digit in this position, is larger. If the first digit is the same, compare the second digit with the second digit, the third digit with the third digit, and so forth, until you find a difference.
What is the formula to find number of three digit numbers such that sum of the squares of any two digits is equal to third digit?
To round a number to a particular digit, look at the digit immediately to the right of your target, in this case, the ones and tens respectively. If that digit is 4 or lower, zero it and everything to the right of it out. If that digit is 5 or higher, increase the target digit by one and zero everything to the right of it out. If your target digit is a 9, increasing it…
Positive integers are greater than negative integers. For positive integers: * The integer with more digits is larger. * If two integers have the same length, compare the first digit. If the first digit is the same, compare the second digit, then the third, etc., until you find a difference. In each case, the integer with the larger digit (at the first position where you find a difference) is the larger one.
There is a clever but tricky way to solve this. If we have to find the number of 4-digit integers that contains at least one 5, we can also find the number of all the 4-digit integers and the number of integers that do not contain any 5's and subtract it from the first number. This is called complementary counting. So, first of all, we must find the number of 4-digit numbers there are. There…