A) 20
B) 5
C) 10
D) 30
Correct Answer: A
Solution :
\[2+7+6+a=4\times 5\] \[\Rightarrow \] \[a=20-15=5\] Now, \[18+1+6+5+b=5\times 10=50\] \[\Rightarrow \]\[b=50-30=20\]You need to login to perform this action.
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