Q2. What is the formula used in Arithmetic Mean? Ans. Arithmetic Mean = Sum of all terms in the AP / Number of terms in the AP Q3. What is the formula used in the Sum of ‘n’ terms of an AP? Ans. Sum ...

Jumble is a daily word puzzle released and operated by the Chicago Tribune newspaper. Refreshing daily, each puzzle gives players four words (six on a Sunday) to unscramble. There’s then a cartoon ...

Miao Jing’s research into genetically-encoded neurotransmitter sensors is a great example of talent incubation at The Chinese Institute for Brain Research, Beijing (CIBR). Jing, one of CIBR’s ...

2017-07-16 2 Israeli police officers killed in shooting in Jerusalem's Old City 2017-07-16 Beijing criticizes Indonesia renaming part of South China Sea 2017-07-16 White House op-ed: CBO methodology ...

Jan. 17, 2026 Scientists are uncovering a hidden and surprisingly complex earthquake zone beneath Northern California by tracking swarms of tiny earthquakes that are far too weak to feel. These faint ...