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Find the missing number from the given r...

Find the missing number from the given responses in each of the following questions.

A

25

B

15

C

17

D

18

Text Solution

Verified by Experts

The correct Answer is:
C
The central number is the sum of square roots of all the four numbers located at the corners in the given arrangement.
1st Figure
`sqrt(4)=2," "sqrt(16)=4`
`sqrt(9)=3," "sqrt(25)=5`
Now, `2+4+3+5=14`
2nd Figure
`sqrt(9)=3," "sqrt(49)=7`
`sqrt(36)=6," "sqrt(1)=1`
Now, `3+7+6+1=17`
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