salman's half yearly exam begin on 18th october.He starts his revision 35 days earlier. When did he start his revision.in this case why should I deduct 18 from 35.i thik he started his revision from 17 because his exam already started on 18
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Answered by
1
Answer:
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Explanation:
he started his revision from 13 September
To verify
13 to 30 September 18 days
1 to 17 October 17 days
Answered by
2
Explanation:
half-early exam begin on=18th oct
he started his earlier=35 days
1oct-18oct =18 days
the remain days are from september=35 days-18days=17 days
then he started his study onwards=30days-17days=13sept
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