If 2 = 3, 3 = 8, 4 = 15, 5 = 24, Then 7 = - www.mathselab.com

Can you solve this puzzle? If 2 = 3, 3 = 8, 4 = 15, 5 = 24, Then 7 = ?

Question


Can you solve this puzzle?

If 2 = 3,
3 = 8,
4 = 15,
5 = 24,
Then 7 = ?


A. 40
B. 48
C. 36
D. 60


Answer: B. 48


Solution:

In the given puzzle the logic is

2 x 1 + 1 = 2 + 1 = 3

3 x 2 + 2 = 6 + 2 = 8

4 x 3 + 3 = 12 + 3 = 15

5 x 4 + 4 = 20 + 4 = 24

6 x 5 + 5 = 30 + 5 = 35

Similarly,

7 x 6 + 6 = 42 + 6 = 48

7 = 48.






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