a
platinum
b
copper
c
zinc
d
carbon
Explanation
Correct Option
dVideo Explanation
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Victory Chidirim
10 years ago
The selected answer is wrong:
Total numbers of balls=15,blue balls=1/15,white balls=4/15 nt 5/15, blue or white balls=1/15 + 4/15=5/15=1/3
REF: Sureway college maths pg 309


