A child was asked to add first few natural numbers, as long as his patience permitted. As he stopped he gave the sum as 575. When the teacher declared the result was wrong, the child discovered that he had missed one number in the sequence during the addition. The number he missed was

As a punishment, teacher told Rohan to write sum of first 1 natural number, sum of first 2 natural numbers, sum of first 3 natural numbers and so on, on blackboard. At one instance, Rohan wrote 575. The teacher stopped him and said that it is wrong, as sum of first n natural numbers can never be 575. Rohan discovered that he has missed one number during addition. Can you identify the missing number for us.00 : 18 : 1911/15 attemptedEndOptions: Pick one correct answer from below1015More than 15Less than 10

Xenia the beginner mathematician is a third year student at elementary school. She is now learning the addition operation.The teacher has written down the sum of multiple numbers. Pupils should calculate the sum. To make the calculation easier, the sum only contains numbers 1, 2 and 3. Still, that isn't enough for Xenia. She is only beginning to count, so she can calculate a sum only if the summands follow in non-decreasing order. For example, she can't calculate sum 1+3+2+1 but she can calculate sums 1+1+2 and 3+3.You've got the sum that was written on the board. Rearrange the summans and print the sum in such a way that Xenia can calculate the sum.InputThe first line contains a non-empty string s — the sum Xenia needs to count. String s contains no spaces. It only contains digits and characters "+". Besides, string s is a correct sum of numbers 1, 2 and 3. String s is at most 100 characters long.OutputPrint the new sum that Xenia can count.ExamplesinputCopy3+2+1outputCopy1+2+3inputCopy1+1+3+1+3outputCopy1+1+1+3+3inputCopy2outputCopy2

Complete the series by filling in the missing number 2, 5, 14, 57, 284, ?

The sum of 5 consecutive odd numbers is 575. What will be the sum of the next set of 5 consecutive odd numbers?

If a sequence of numbers is such that each number is the sum of the previous two numbers minus one, and the first two numbers are 1 and 2, what is the fifth number in the sequence?4563