NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 7: Algebra - Expressions into Statements in Ordinary Language
Question 78

Question. 78

The maximum temperature on a day in Delhi was p°C. The minimum temperature was (p − 10)°C.

Answer:

The difference between maximum and minimum temperature on a day in Delhi was 10°C.

Detailed Answer with Explanation:

  1. Maximum temperature = ( p^circ ext{C} )
  2. Minimum temperature = ( (p - 10)^circ ext{C} )
  3. Difference = (Maximum) − (Minimum)
  4. ( ext{Difference} = p - (p - 10) )
  5. Open the bracket carefully:
    ( p - (p - 10) = p - p + 10 )
  6. Combine like terms:
    ( p - p = 0 )
  7. So, ( ext{Difference} = 10 )
  8. Therefore, the difference between maximum and minimum temperature is ( 10^circ ext{C} ).
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NCERT Exemplar Solutions Class 6 – Mathematics – Unit 7: Algebra – Expressions into Statements in Ordinary Language | Detailed Answers