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(−27) × (−16) + (−27) × (−14) = ?

(a) −810
(b) 810
(c) −54
(d) 54

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Solution

(b) 810
(−27) × (−16) + (−27) × (−14)
= (−27) × (−16 + (−14)) [Associative property]
=(−27) × (−30)
= 810

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Mark (✓) against the correct answer:
What per cent of 45 is 54?
(a) $83 \frac{1}{3} %$
(b) 104%
(c) 108%
(d) 120%

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