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Integers — MATHS STD 6 — Question

Gujarat BoardEnglish MediumSTD 6MATHSIntegers1 Mark
MCQ
Temperature decreased by $20^\circ $. This event is represented as:
  • A
    $+20$
  • ✓
    $-20$
  • C
    $10$
  • D
    $-10$
✓

Answer

Correct option: B.
$-20$

Temperature is decreased by $20$.
From the reference level, increase in temperature = +ve and decrease in temperature = −ve.
$\Rightarrow $ Temperature is represented as $−20.$

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