11+ practice and progress

Speed and accuracy are the main deciding factors for the 11+ Plus exams success. Practice and improve your speed and accuracy with our unique Speed Test. This speed test presents you a 30 seconds challenge on random questions from collection of thousands of questions.
:
:
Find the next Number in the series :

3 , 10 , 9 , 16 , 15 , ... ?
a. 22
b. 23
c. 26
d. 25





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