Answer :

(a) Rounding off 874 to nearest hundred = 900


Rounding of 478 to nearest 100 = 500


900 + 500 = 1400


(b) Rounding off 793 to nearest hundred = 800


Rounding of 397 to nearest hundred = 400


800 + 400 = 1200


(c) Rounding off 11244 to nearest hundred = 11200


Rounding of 3507 to nearest hundred = 3500


11200 + 3500 = 14700


(d) Rounding off 17677 to nearest hundred = 17700


Rounding of 3507 to nearest hundred = 13600


17700 + 13600 = 31300


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