Question

9,16=7 4,36=8 121,81=20 25,49=?

Answer 1

Answer:

12.

Step-by-step explanation:

We have been given format of different numbers. We are asked to find the missing value for our given format.

$9,16=7$

Taking square root of 9 and 16 we will get,

$\sqrt{9}=3$

$\sqrt{16}=4$

$3+4=7$

Similarly, we can see that by taking the square root of all the on the left side of equation and adding them we get right side of equation.

$\sqrt{4}=2$

$\sqrt{36}=6$

$2+6=8$

$\sqrt{121}=11$

$\sqrt{81}=9$

$11+9=20$

Upon taking square root of 25 and 49 we will get,

$\sqrt{25}=5$

$\sqrt{49}=7$

$5+7=12$

Therefore, the missing number of our given sequence is 12.

Answer 2

Answer:

12

Step-by-step explanation:

√9 = 3 and √16 = 4

3 + 4 = 7

There is the same relationship in the second and third  set of numbers.

so for 25,9 the answer is 5 + 7 = 12