In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there ?
The National Survey and Mapping Organization of the country under the Department of Science & Technology is The Survey of India. It was founded by The East India Company in the year 1767, head quartered in Dehradun.
The East India Company appointed James Rennell to survey the Bengal Presidency in 1767.