Question
Find the rightmost non-zero integer of the expression 1430343+1470367?
Answer: Option C
:
C
option (c)
It can be easily observed that 1470367 has more number of zeroes as compared to
1430343. hence, the rightmost non-zero integer will depend on the unit digit of only 1430343, which in turn will depend on the unit digit of 3343 343 can written as 4k+3
In the power cycle of 3 (3,9,7,1), the third digit is 7. Hence, the last non-zero integer in the expression is 7.
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:
C
option (c)
It can be easily observed that 1470367 has more number of zeroes as compared to
1430343. hence, the rightmost non-zero integer will depend on the unit digit of only 1430343, which in turn will depend on the unit digit of 3343 343 can written as 4k+3
In the power cycle of 3 (3,9,7,1), the third digit is 7. Hence, the last non-zero integer in the expression is 7.
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