Question
In how many ways can 5 boys and 3 girls be arranged in a
row so that no two girls sit together?Solution
ATQ, Arrange 5 boys first: 5! = 120 ways. This creates 6 possible gaps for girls: _ B _ B _ B _ B _ B _ → 6 gaps. Choose 3 of these 6 gaps for the 3 girls: C(6,3) = 20. Arrange 3 girls among themselves: 3! = 6. Total arrangements = 5! × C(6,3) × 3! = 120 × 20 × 6 = 14,400.
The Government has appointed Vinodanand Jha as New chairperson to &...
Recently Maharashtra Government has given approval to renaming of which of the following cities?
What percentage of snow leopards in India are found in Ladakh, as per the PLOS ONE study?
What is the official launch date for Maharashtra's geo-tagged 13-digit Infra ID system?
Indian Railways created a record of how many metric tonnes of monthly freight traffic in April 2023?
Which film will open the 31st Kolkata International Film Festival 2025?
What is the official duration of the YUVA AI for ALL course launched under IndiaAI Mission?
ITC has acquired a 39.42% stake in Sproutlife Foods, makers of “Yoga Bar” food products, for Rs _______.
Concerning Srinagar's designation as a World Craft City:
1. The designation was given by the World Crafts Council (WCC).
2. It recognizes ...
The Finance Ministry allowed GST relief for which sector concerning demo vehicles?
