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What is the value of (–3) ×(–7) –12 + 15?

  • a)
    24

  • b)
    18

  • c)
    –24

  • d)
    none of these

Correct answer is option 'A'. Can you explain this answer?
Verified Answer
What is the value of (–3) ×(–7) –12 + 15?a)24b...
(–3) × (–7) – 12 + 15
= 21 –12 + 15 = 36 – 12 = 24
This question is part of UPSC exam. View all Class 7 courses
Most Upvoted Answer
What is the value of (–3) ×(–7) –12 + 15?a)24b...
(–3) × (–7) – 12 + 15

= 21 –12 + 15 = 36 – 12 = 24
Community Answer
What is the value of (–3) ×(–7) –12 + 15?a)24b...
Calculation:
To find the value of the expression (-3) x (-7) - 12 + 15, we follow the order of operations (PEMDAS).

Multiplication of negative numbers:
When we multiply two negative numbers, the result is a positive number.
(-3) x (-7) = 21

Substitute the multiplication:
Now, substitute the result of the multiplication back into the expression:
21 - 12 + 15

Addition and Subtraction:
Now, perform the addition and subtraction in order:
21 - 12 = 9
9 + 15 = 24
Therefore, the value of the expression (-3) x (-7) - 12 + 15 is 24.
So, the correct answer is option 'A'.
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What is the value of (–3) ×(–7) –12 + 15?a)24b)18c)–24d)none of theseCorrect answer is option 'A'. Can you explain this answer?
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