Answer: Option A
Explanation:
(2)2 = 4
(8)2 = 64
(5)2 = 25
(1)2 = 1.
Answer: Option B
(10 + 9 + 14 + 7)/2 = 20
and (11 + 16 + 10 + 13)/2 = 25
Therefore, (15 + ? + 12 + 10)/2 = 22
Hence 37 + ? = 44
? = 44 - 37
? = 7.
Answer: Option D
(5 x 6) + 2 = 32
(7 x 6) + 2 = 44
(7 x 5) + 2 = 37.
(5 + 3)/2 = 4
and (6 + 8)/2 = 7
Therefore (8 + 4)/2 = 6.
(1)2 + (5)2 + (4)2 + (3)2 = 51 x 10 = 510
and (3)2 + (4)2 + (6)2 + (2)2 = 65 x 10 = 650
Similarly (0)2 + (1)2 + (2)2 + (8)2 = 69 x 10 = 690.
1 + 2 + 3 + 4 = 10
and 1 + 3 + 5 + 8 = 17
Similarly, 1 + 4 + 6 + 9 = 20.
Answer: Option C
(4 + 8) x 9 = 108
(5 + 4) x 12 = 108.
For first triangle,
10 - 4 = 6
18 - 10 = 8
18 - 4 = 14
For second triangle,
14 - 8 = 6
22 - 14 = 8
22 - 8 = 14
For third triangle,
11 - 5 = 6
15 - 11 = 4
15 - 5 = 10.
(2 x 2 - 1) = 3
and (5 x 4 - 5) = 15
(5 x 5 - 3) = 22.
How the number is obtained?
2 + 4 = 6
5 + 9 = 14
Similarly,
3 + 5 = 8
Therefore, the answer is K8.
