Can you solve this number puzzle 9 + 8 = 117, 16 + 13 = 329, 19 + 11 = 830, 23 + 18 = - mathselab.com

Can you solve this number puzzle 9 + 8 = 117, 16 + 13 = 329, 19 + 11 = 830, 23 + 18 = ??

Question


Can you solve this number puzzle

9 + 8 = 117
16 + 13 = 329
19 + 11 = 830
23 + 18 = ??


A. 540
B. 541
C. 215
D. 345


Answer: B. 541


Solution:

A + B = (A – B) (A + B)

=> 9 + 8 = (9 – 8) (9 + 8) = 1 17

=> 16 + 13 = (16 – 13) (16 + 13) = 3 29

=> 19 + 11 = (19 – 11) (19 + 11) = 8 30

=> 23 + 18 = (23 – 18) (23 + 18) = 5 41

Hence, The Answer is 541.





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