Question
The average of 19 numbers is 15.The average of first 9
numbers are12 and that of the last 9 numbers are15. What will be the 19th number?Solution
Sum of 19 numbers = 19 × 15 = 285 Sum of first 9 numbers = 9 × 12 = 108 Sum of last 9 numbers = 9 × 15 = 135 Therefore, 19th number = 285 – (108 + 135) = 42
The first Chairman of Finance commission was
Which substances are primarily responsible for the formation of ground-level ozone (GLO)?
Rajasthan state formation diwas is celebrated every year on?
Which of the following major city is not situated on the bank of river Kaveri?
When was the first National Panchayati Raj Day observed in India?
On 14th December International Herbal fair was organized in
Recently a government scheme in India had concluded a loan agreement with World Bank of an amount of $ 250 million. Name the scheme
The Hemis National Park is located in-
What is the capital of Argentina?
Orphan drugs are used to treat which kind of diseases?
