Question:
ശ്രേണിയിലെ തെറ്റായ സംഖ്യ ഏത്?
7, 28, 63, 124, 215, 342, 511
A7
B124
C28
D215
Answer:
C. 28
Explanation:
2³ - 1 = 7 3³ - 1 = 26 4³ - 1 = 63 5³ - 1 = 124 6³ - 1 = 215 7³ - 1 = 342 8³ - 1 = 511
Question:
ശ്രേണിയിലെ തെറ്റായ സംഖ്യ ഏത്?
7, 28, 63, 124, 215, 342, 511
A7
B124
C28
D215
Answer:
2³ - 1 = 7 3³ - 1 = 26 4³ - 1 = 63 5³ - 1 = 124 6³ - 1 = 215 7³ - 1 = 342 8³ - 1 = 511