Question

15 less than the marks scored by Sunil is 55. How many marks did Sunil score?

Answer 1

Hint – In this question let the marks scored by Sunil be x, use the constraints of the questions to formulate the relation for the variable x, and then solve this to get the answer.

Complete step-by-step answer:
Let the marks scored by Sunil is x.
Now it is given that 15 less than the marks scored by Sunil is 55.
Now construct the linear equation according to the above information taking x as a variable.
Therefore the difference of marks scored by Sunil and 15 is equal to 55.
$ \Rightarrow x - 15 = 55$
Now simplify this equation we have,
$ \Rightarrow x = 15 + 55 = 70$
So this is the required marks scored by Sunil.
So this is the required answer.

Note – One important aspect is that considering the variable is solemnly up to choice, instead of x we could also have taken y or z, or anything. The aim is to get the variable, the assignment of the variable's name plays no role in determining the final result.