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what is remainder when 123412431234...(400 digits) is divided by 909?
Read Solution (Total 8)
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- 1234%909=325;
12341234%909=650=325*2;
123412341234%909=325*3;
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12341234....................(repetation of 1234 100 times)=325*100=32500;
therefore,32500%909=685; that's it.
Always observe the pattern when there id periodic repetaion of digit are there. - 11 years agoHelpfull: Yes(22) No(1)
- if you divide 1234 by 909 u get remainder 325
so if u divide 100* 325 / 909 the remainder will be the same
32500/909 gives remainder 685
685 is the answer
if we divide 1234 by 909 the remainder will be 325.
now we have to do this 100 times.
so 32500/909 gives 685.
or...
32500/909 the integer part is 35
32500 - 35 * 909 = 32500 -31815 = 685 - 11 years agoHelpfull: Yes(12) No(4)
- 1234/909=325*1
12341234/909=650=325*2
123412341234/909=(325*3)/909=66
1234123412341234/909=(325*4)/909=391
similarly
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123412341234...(400 digits) means 1234 100 times,so
123412431234...(400 digits)/909=325*100=32500
now dividing 32500 by 909 gives the reqd remainder which is 685 - 11 years agoHelpfull: Yes(7) No(1)
- 4 numbers "1234"placed after each...so in 400 digits the 4 digits from the last should be 1234...so 1234/909 is 325..so the answer should be 325..
- 11 years agoHelpfull: Yes(1) No(1)
- if 12341243/909 gives remainder=659
nd its occurs 50 times
so 659*50=32950
nd 32950/909=226
so ans is226 - 11 years agoHelpfull: Yes(1) No(2)
- 1234 occur 100 times so remainder will be 100*1234 mod 909=685
- 11 years agoHelpfull: Yes(1) No(2)
- The ques is wrong if you carefully see the ques..The seventh digit should be 3 and the eight digit should be 4..
- 11 years agoHelpfull: Yes(1) No(0)
- The remainder is 685 !!!
- 11 years agoHelpfull: Yes(1) No(0)
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