A) 12 kg
B) 10 kg
C) 15 kg
D) 30 kg
Correct Answer: C
Solution :
Weight of a big metal ball = 45 kg Weight of 10 small metal ball = weight of 4 small metal ball + weight of 2 big metal ball. 10 \[\times \] weight of 1 small metal ball \[-\] 4 \[\times \] weight of 1 small metal ball \[=45\times 2\] 6 \[\times \] weight of 1 small metal ball = 90 Weight of 1 small metal ball \[=90\div 6=15\]kg So, weight of 1 small metal ball = 15 kgYou need to login to perform this action.
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