Question

40 points urgent really need answer
7) Which of these number sentences could be used to find the number that is missing from the number pattern ? 1, 5, 13, 25, ░, 61 *
a. 25+32= 57
b. 61-16= 45
c. 25+12= 37
d. 25+16= 41

Answer 1

$a_1=1\\a_2=1+4=5\\a_3=5+2\cdot4=5+8=13\\a_4=13+3\cdot4=13+12=25\\a_5=25+4\cdot4=25+16=41\\a_6=41+5\cdot4=41+20=61$

Answer: d. 25 + 16 = 41