Question

What numbers can be used to fill the blanks? \[\_+\_+\_=30\] ?

Answer 1

Hint: Problems like these are quite simple in nature and are very easy to solve once we understand all the underlying concepts behind the questions. In such problems we need to have a clear cut idea of fractions and number systems and also about integers which add up to a certain given number. In this particular problem, we need to find three such numbers which add up to form a particular given number which is equal to thirty. There can be many possibilities in place of the blanks, any one of the solutions will work.

Complete step-by-step answer:
Now we start off with the solution of the problem by saying that, in the place of any three numbers which may add up to form the number thirty, we choose the first number as \[10\] . Now we can clearly notice that, now we need to place two numbers which will add up to form the number twenty. We choose the second number as \[11\] . After this we can clearly see that the first two numbers add up to form \[21\] or twenty one, so we are just nine away from forming thirty. So we choose the last number as nine or \[9\] . So we say that the three numbers that add up to form thirty are, \[9,10,11\] .

Note: For solving these types of problems efficiently we need to keep in mind of chapters like fractions, number systems and integers. We must also keep in mind that there can be possibilities where the three numbers chosen can be repeating. For example, we can easily say that the three numbers may be \[10,10,10\] . There can also be a case where two numbers are repeating and the other one is unique. We can also use negative integers.