The correct answer is A
2187, 1458, 972, ?, 432, 288
5 10 40 80 320 640
4 a b c d e
Find the value of d.
400 200 300 ? 2625 11812.5
43 36 50 29 ? 22
24, 12, 18, ?, 157.5, 708.75
3 16 22 ? 98 206
37 59 103 191 ? 719
640 322 164 86 48 ?
17 ? 33 44 57 72
31 48 67 90 ? 150
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