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Question 10 Which of the following is equal to 1? (a) 20+30+40(b) 20×30×40(c) (30−20)×40(d) (30−20)×(30+20)

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Question 10

Which of the following is equal to 1?
(a) 20+30+40(b) 20×30×40(c) (3020)×40(d) (3020)×(30+20)



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