
(a) Rubber, brass and steel respectively
(b) Brass, steel and rubber respectively
(c) Steel, brass and rubber respectively
(d) Steel, rubber and brass respectively
Answer-c
(8)
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(a) Rubber, brass and steel respectively
(b) Brass, steel and rubber respectively
(c) Steel, brass and rubber respectively
(d) Steel, rubber and brass respectively
Answer-c
(8)
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