Ten > Sequence and Series

Asked by Basanta · 2 years ago

A student bought a Nepali dictionary from the Sajha Pustak Bhandar. He decided to learn new words in arithmetic sequence every day. On the first day he learned 20 new words and on the fifth day 40 new words.

1. How many terms are there in an arithmetic sequence having five means?
2. How many new words did he learn in the succeeding day? Find it.
3. How many new words will he learn till tenth day? Find it.