A) 1
B) 7
C) 4.57
D) 32
Correct Answer: D
Solution :
[d] Let the missing figure in the expression be x. \[\frac{16}{7}\times \frac{16}{7}-\frac{x}{7}\times \frac{9}{7}+\frac{9}{7}\times \frac{9}{7}=1\] \[\Rightarrow 16\times 16-9x+9\times 9=7\times 7\] \[\Rightarrow 9x=16\times 16+9\times 9-7\times 7=256+81-49=288\]\[\Rightarrow x=\frac{288}{9}=32\]You need to login to perform this action.
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