Question 148

Choose the option which will come next in the series

A3, D6, H10, ?

Solution

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D is 3 positions ahead of A, H is 4 positions ahead of D, using this sequence, the next letter should be 5 positions ahead of H, which is M

3 and then comes 6, so it increases by 3, 6 and then 10, so increases by 4, so the next number has to increase by 5 

So, the answer is M15. 

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