1.

5. To find som of three nmumbers 16. 28 and 12, we can have teo ways(a) We may first add 16 and 28 to get 44 and then add 12 to it to get the total sum 56 or0) We may add 28 and 12 to get 40 and then udd 1s to get the sum 56Thus, (164 28)4 12 16 (28 12)

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