Question 40

Find the missing number from the given alternative

Solution

In the top left quarter of circle we can observe thatĀ 

$$\left(3^2+4^2\right)\times3\ =\ 75$$

In the top right cornerĀ 

$$\left(7^2+9^2\right)\times3\ =\ 390$$

In the bottom left cornerĀ 

$$\left(11^2+8^2\right)\times3\ =\ 555$$

In the bottom right cornerĀ 

$$\left(13^2+5^2\right)\times3\ =\ 582$$


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