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Properties of Multiplication of Integers

888+777+555=1...

Question

(888 + 777 + 555) = (111 × ?)
(a) 120
(b) 280
(c) 20
(d) 140

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Solution

(c) 20

(888 + 777 + 555) = (111 × ?)
⇒ (888 + 777 + 555) = 111 × (8 + 7 + 5) [By taking 111 common]
= 111 × (20) = 2220

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