A) 2195
B) 2915
C) 2951
D) 2955
Correct Answer: B
Solution :
: (4 10) \[=\left( 4+10+4\times 10-1 \right)\left( 4+10+4\times 10+1 \right)\] \[=\left( 54-1 \right)\left( 54+1 \right)=53\times 55=2915.\]You need to login to perform this action.
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