Question

10,30,70,133,223,345......​

Answer 1

Answer:

a) 505

Step-by-step explanation:

See attached, it is self explanatory

In each row below the top one you can see the difference in terms of the row above, and the last row is a key to continue the series: 3, 4, 5 and the next term is 6, this gives the 38 for the one above and that in turn helps to find 38+122= 160, and then 345+160= 505 is giving the next term in the given series