Each row is read from left to right not down, that's what messed me up. All it wants you to do is fill in the blanks to make each row equal 187. It's a tricky table. q+d+n+p = 187. q=25, d=10, n=5, p=1. So for the first row, it's 4q + 6d + 5n + 2p = 187.
Answer:
easy peasy,
the 'n' th term of any arithmetic sequence can be found with the following formula
=> a + ( n-1) d, [where 'a' if the first term of the sequence, 'n' the number of term we need to find, and 'd' being the common difference between each two consecutive term of the sequence)
all in this case would be,
a = 0
n = 100
d = +5
hence the 100th term would be,
=> 0 + (100 - 1) 5
=> 99 x 5
=> 495
