Question

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​

Answer 1

Answer:

below is your answer

hope it helps you thanks

Explanation:

he started his revision from 13 September

To verify

13 to 30 September 18 days

1 to 17 October 17 days

Answer 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