# Ex.1.1 Q2 Integers - NCERT Maths Class 7

Go back to  'Ex.1.1'

In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If Jack’s score in five successive rounds were $$\rm{}25, –5, –10,15, 10.$$ What was his total in the end?

What is known?

Jack’s score in five successive rounds.

What is unknown?

Jack’s total score in five rounds.

Reasoning:

Just add the scores in five rounds to get the total score.

Steps:

Jack’s scores in the five successive rounds are $$25, –5, –10, 10$$ and $$15$$

Total marks obtained by jack

\begin{align}& = 25 + \left( { - 5} \right) + \left( { - 10} \right) + 10 + 15\\& = 25-5-10 + 10 + 15\\& = 35\end{align}

Thus, jack obtained $$35$$ marks in the quiz.

Video Solution
Integers
Ex 1.1 | Question 2

Learn from the best math teachers and top your exams

• Live one on one classroom and doubt clearing
• Practice worksheets in and after class for conceptual clarity
• Personalized curriculum to keep up with school