What should come in place of question mark ‘?’ in the following number series?
4, 90, ?, 9790, 98010
What should come in place of question mark ‘?’ in the following number series?
4, 90, ?, 9790, 98010
1). 904
2). 975
3). 948
4). 970
1 answers
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(4 + 5) × 10 = 90
(90 + 7) × 10 = 970
(970 + 9) × 10 = 9790
(9790 + 11) × 10 = 98010
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