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10 12 30 102 428 ?
(a) 4280
(b) 2170
(c) 1420
(d) 2000
(e) 3230
asked in Quantitative Aptitude by (8.1k points) 134 286 528 | 95 views

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Best answer
$10 \times 1 + 1 \times 2 = 12$

$12 \times 2 + 2 \times 3 = 30$

$30 \times 3 + 3 \times 4 = 102$

$102 \times 4 + 4 \times 5 = 428$

$428 \times 5 + 5 \times 6 = 2170$

 

Hence,Option$(b)2170$ is the corrcet choice.
answered by (11k points) 7 12 98
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