Answer:
1. 42
2. 39,30
3. 30,48
Explanation:
In first question, you are adding 7 each time, so 35+7 gives you 42
In the second one, the difference between the first two terms is subtracting 1, also the difference between the 2nd and 3rd term is subtracting 3, so obviously you should know that you are subtracting the next odd number each time, after 46, you should subtract 7 from 46, this will give you 39, and subtract 9 from 39 will give you 30, to check, you got to subtract the next odd number from 30 which is 11, so 30-11=19
Finally in the last question, the difference between first two terms is adding 2, then the difference between the second ones are adding 4, after that you should know that your next term is adding 6 to the term before it, because here the difference between the terms is adding the next even number for the next term, you know that the even numbers are 2,4,6,8,10,..., so 24+6=30, then 30+8=38, and lastly 38+10=48
Hope you get the idea of solving these questions.