A) 14
B) 22
C) 32
D) 320
Correct Answer: C
Solution :
The number inside the triangle is obtained by dividing the product of the numbers outside of the triangle by 10. Thus, In I triangle, \[\left( 5\times 6\times 4 \right)\div 10=12\] In II triangle, \[\left( 6\times 7\times 5 \right)\div 10=21\] \[\therefore \] In III triangle, missing number \[=(4\times 8\times 10)\div 10=32.\]
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