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yea exactly........what I did was in the begining it was clode to 24000 so gradual decrease to 21000 and then rose to 2200 in Jan 72
so overall this was what I estimated
24000 =3months apprx
21000=3months apprx
22000=6months apprx (since it lowered from 24k to 21k and again 21k to22k)
so 24000*3+21000*3+22000*6=267000
so E is the answer
any suggestion please do tell if wrong
Thanks
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