10) Stand
Choose the number which will replace the
question mark (?).
100 : 121 - 144 : ?
(a) 160 (6) 93
(c) 169 (d) 426
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Answer:169 is correct
Step-by-step explanation:because the difference between first and the second is 21. Then the difference between second and the third is 23. So the difference between the third and the fourth is 25. Two is added.
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