Find the missing number, if a certain rule is followed in the following figures.
A 161
B 452
C 1583
D 2331
How did you derive this?
Ans 1:
Class : Class 9
The answer is C -
You have to take add the first and fourth term and then subtract it from the difference of second and third term
eg of 1st one: 175 + 428 = 603 , 81 - 24 =57
603 + 57 = 660
Therefore,
1085 + 231 = 1316 , 641 - 374 = 267
1316 + 267 = 1583
Answer = C