Doubling (AABBCC)

Make it instantly recognisable

left
90 70 07 70 09
₹26,875
₹21,500
Sum: 39
Total: 3
left
90 70 33 3344
₹21,125
₹16,900
Sum: 36
Total: 9
left
90 55 11 1122
₹26,875
₹21,500
Sum: 27
Total: 9
left
766 6666 366
₹4,68,750
₹3,75,000
Sum: 58
Total: 4
left
90 93 8888 99
₹26,875
₹21,500
Sum: 71
Total: 8
left
95 27 8888 88
₹4,68,750
₹3,75,000
Sum: 71
Total: 8
left
98 53 992 288
₹8,125
₹6,500
Sum: 63
Total: 9
left
98 58 664 433
₹8,125
₹6,500
Sum: 56
Total: 2
left
98 58 770 044
₹8,125
₹6,500
Sum: 52
Total: 7
left
98 53 009 911
₹8,125
₹6,500
Sum: 45
Total: 9
left
98 53 994 411
₹8,125
₹6,500
Sum: 53
Total: 8
left
98 58 448 811
₹9,376
₹7,501
Sum: 56
Total: 2
left
98 58 550 088
₹8,125
₹6,500
Sum: 56
Total: 2
left
98 58 447 733
₹8,125
₹6,500
Sum: 58
Total: 4
left
98 58 448 822
₹8,125
₹6,500
Sum: 58
Total: 4
left
98 58 447 700
₹8,125
₹6,500
Sum: 52
Total: 7
left
90 55 888 899
₹26,875
₹21,500
Sum: 69
Total: 6
left
90 83 111 122
₹26,875
₹21,500
Sum: 28
Total: 1
left
98 58 660 099
₹8,125
₹6,500
Sum: 60
Total: 6
left
98 53 997 722
₹8,125
₹6,500
Sum: 61
Total: 7
left
98 53 008 822
₹8,125
₹6,500
Sum: 45
Total: 9
left
98 53 118 855
₹8,125
₹6,500
Sum: 53
Total: 8
left
98 53 778 811
₹8,125
₹6,500
Sum: 57
Total: 3
left
98 53 007 744
₹8,125
₹6,500
Sum: 47
Total: 2

Doubling (AABBCC) number pattern