Answer Key: 1 Explanation: By going clockwise, the terms are :,5^{3},6^{3},7^{3} , 8^{3}, 9^{3}, 10^{3} So answer is option 1
1. 13
2. 18
3. 21
4. 23
Answer Key: 3 Explanation: The numbers in the right half form the series with common difference one 12,13,14,15
The numbers in the left half form the series with common difference two 15,17,19,21.
So the answer is option 3
1. 8
2. 9
3. 16
4. 25
Answer Key: 2 Explanation: The two ends of each line contain a number and its square. So, missing number =3^{2}= 9. So the answer is option 2
1. 925
2. 1025
3. 1027
4. 1024
Answer Key: 2 Explanation: The pattern is 5×2 -1 =9,9×2-1=17,17×2-1=33,33×2-1=65,65×2-1=129,129×2-1=257
257×2-1=513, 513×2-1=1025 so answer is option 2.