A) 6543 |
B) 5634 |
C) 3564 |
D) 5364 |
D) 5364 |
Fig. I
\( \left(4+8\right) \div 2=6 \)
\( \left(3+7\right) \div 2=5 \)
\( \left(6+2\right) \div 2=4 \)
\( \left(5+1\right) \div 2=3 \)
6543 - middle number
Fig. II
\( \left(1+5\right) \div 2=3 \)
\( \left(2+6\right) \div 2=4 \)
\( \left(3+7\right) \div 2=5 \)
\( \left(8+4\right) \div 2=6 \)
3456 - middle number
Fig. III
\( \left(7+3\right) \div 2=5 \)
\( \left(5+1\right) \div 2=3 \)
\( \left(4+8\right) \div 2=6 \)
\( \left(2+6\right) \div 2=4 \)
Therefore, Middle number is '5364'