Question:
1 , 5 , 13 , 25 , 41 , _____
A64
B61
C81
D71
Answer:
B. 61
Explanation:
1 + 4 = 5 5 + 4 ×2 = 13 13 + 4 × 3 = 25 25 + 4×4 = 41 41 + 4×5 = 61
Question:
A64
B61
C81
D71
Answer:
1 + 4 = 5 5 + 4 ×2 = 13 13 + 4 × 3 = 25 25 + 4×4 = 41 41 + 4×5 = 61
