Asked by VIVAAN SINGH · Fujairah private academy
Answer: C. 7723
Add column by column with carrying: ones 8 + 5 = 13 (write 3, carry 1), tens 2 + 9 + 1 = 12 (write 2, carry 1), hundreds 5 + 1 + 1 = 7, thousands 4 + 3 = 7. So the sum is 7723.
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