The first term in a sequence is 1 and the second term is 5. From the third term onwards, each term is the average (arithmetic mean) of all preceding terms. What is the 27th term in the sequence?
- 2.5
- 3
- 5.5
- None of these
Explanation
Let's analyze the sequence:
- Term 1: 1
- Term 2: 5
From the third term onwards, each term is the average of all preceding terms. So:
- Term 3: (1+5)/2 = 3
- Term 4: (1+5+3)/3 = 3
- Term 5: (1+5+3+3)/4 = 3
Related MCQs
- TIFF
- JPEG
- PSD
اس سوال کو وضاحت کے ساتھ پڑھیں
- Uncle
- Father
- Brother
- Grandfather
اس سوال کو وضاحت کے ساتھ پڑھیں
- Gallery
- Frame
- Artist
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
کون سا طریقہ اس دعوے کی سب سے زیادہ براہ راست حمایت کرتا ہے کہ امتحان تجویز کردہ نصاب اور مطلوبہ ادراکی مطالبات کا مناسب نمونہ پیش کرتا ہے؟
- Compare scores with an external achievement criterion
- Use a test blueprint with expert review
- Estimate internal consistency across test items
- Convert raw scores into percentile ranks
اس سوال کو وضاحت کے ساتھ پڑھیں
- EFG
- EFI
- EFH
- None of these