CBSE Class 10 Answered
quest. is of 10 marks.
Asked by ayushikas | 30 Apr, 2010, 08:47: AM
Expert Answer
Dear student,
n/810 =0..............................................1
1000×n/810 = d25...........................2
Subtract eqn 1 from eqn 2
999n/810 = d25
n=d25×810/910
n=d25×30/37
As n is an integer, so d25 must be completely divisible by 37.
As d is a single digit number, the only multiple of 37 that makes it possible is 25 (37×25 = 925).
Hence d=9.
Hence n = 925×30/37
n=750
Regards Topperlearning.
Answered by | 30 May, 2010, 09:55: AM
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