1834 (3+1)6 (4+2)9 (6+3)13 (9+4)18 (13+5)...and so on
3 The series is obtained by subtracting a number that reduces by 1 at each stage 18 - 5 = 13 13 - 4 = 9 9 - 3 = 6 6 - 2 = 4 4 - 1 = 3
18 3 +1 4 +2 6 +3 9 +4 13 +5 18 +6 24 +7 31 +8 39 +9 48 +10 58...
9/6 + 4/6 = 13/6 = 2 and 1/6
7 fractions which are equivalent to 3/13 = 6/26, 9/39, 12/52, 15/65, 18/78, 21/91, 24/104,... To get the equivalent fractions of 3/13: Multiply 3/13 by 2/2, 3/3, 4/4, 5/5,... 3/13 * 2/2 = 6/26 3/13 * 3/3 = 9/39 3/13 * 4/4 = 12/52 3/13 * 5/5 = 15/65
18 is the answer and here is why:- 3+1=4 4+2=6 6+3=9 9+4=13 13+5=18
1834 (3+1)6 (4+2)9 (6+3)13 (9+4)18 (13+5)...and so on
18. The pattern is 3+1=4, 4+2=6, 6+3=9, 9+4=13, so 13+5=18
18. 3+1=4, 4+2=6, 6+3=9, 9+4=13, 13+5=18.
18 (3+1 4+2 6+3 9+4 13+5)
18 Add to previous number by 1 then 2 then 3 then 4 and 5 3+1=4 4+2=6 6+3=9 9+4=13 so then 13+5=18
3 The series is obtained by subtracting a number that reduces by 1 at each stage 18 - 5 = 13 13 - 4 = 9 9 - 3 = 6 6 - 2 = 4 4 - 1 = 3
4 6 9 13 18 24 31 39 ...... Add 2 to 4 to get 6 then add 3 to 6 to get 9 then add 4 to 9 to get 13 and so on.
3 4 6 9 13 18...1....2....3....4......5
18 3 +1 4 +2 6 +3 9 +4 13 +5 18 +6 24 +7 31 +8 39 +9 48 +10 58...
9393
18