APURV GOEL
Last Activity: 14 Years ago
Solution :-
abcde is a 5 digit no.
therefore…… abcde =10000a+1000b+100c+10d+e ……..(1)
because, abcde1 = 3*1abcde
so, 100000a+10000b+1000c+100d+10e+1 = 3*(100000+10000a+1000b+100c+10d+e)
100000a+10000b+1000c+100d+10e+1 =300000+30000a+3000b+300c+30d+3e
100000a+10000b+1000c+100d+10e-30000a-3000b-300c-30d-3e = 300000-1
70000a+7000b+700c+70d+7e = 299999
7(10000a+1000b+100c+10d+e) = 7(42857)
10000a+1000b+100c+10d+e = 42857
Putting value from 1 we get……………..
abcde = 42857
sum of digits = 4+2+8+5+7
= 26