दी गई श्रृंखला में लुप्त संख्या ज्ञात कीजिए: 1005, 9990, 1010, 9980, 1015, ____, 1020, 9960

Which number should replace the question mark (?) in the given series? 8, 10, 14, 20, 30, 44, ?, 90

Which number should replace the '?' in the given series? 8, 10, 14, 20, 30, 44, ?, 90

Select the missing number from the given series: 4, 3, 4, 7, 15, 38.5, ?