What is the next two numbers in each pattern: (a) 8, 5, 2, -1.. (b) -15, -11, -7, -3.. (c) -11, -8, -5, -2.. (d) 9, 8, 5, 0.. (e) 12, 7, 3, 0,.. and (f) -7, -5, -1, 5.. ?

1 Answer
Nov 13, 2016

the next two numbers respectively#(a)-4,-7#,#(b)1,5#,#(c)1,4#,#(d)-7,-16#,#(e)-2,-3#,#(f)13,23#.

Explanation:

the numbers in each pattern are in a.p.
for #(a)# common difference=#-3#
#(b)# common difference=#4#
#(c)# common difference =#3#
#d# common difference =#-1,-3,-5# i.e. the common differences are in a.p.
#(e)# common difference =#5,4,3,2# i.e. the common differences are in a.p.
#(f)# common differences =#2,4,6#i.e. the common differences are in a.p.