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Question
In a abrasion test loss in weight is 27 gms, then coefficient of hardness will be
,d ?k"kZ.k ijh{k.k esa otu esa deh 27 xzke gS] rks dBksjrk xq.kkad gksxk
A.
11
B.
12
C.
13
D.
14
Answer ( Option A)

11

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