A) 94
B) 14
C) 49
D) 53
Correct Answer: A
Solution :
The rule is: Divide each number by 3 and write the quotients in the reverse order. \[\frac{3}{3}+\frac{9}{3}=13\] \[\Rightarrow \] \[31;\frac{15}{3}+\frac{12}{3}=45;\] \[18+9=\frac{18}{3}+\frac{9}{3}=63\]\[\Rightarrow \]\[36\,\text{etc}\text{.}\] \[\therefore \] \[\frac{12}{3}+\frac{27}{3}=49\Rightarrow 94.\] \[\therefore \] \[2\,\,1\,\,5={{2}^{2}}\,1\,\,{{5}^{2}}=4\,\,1\,\,2\,5\]You need to login to perform this action.
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