Question
How many 5-digit numbers can be formed using digits
1–7 such that digits are odd-even-odd-even-odd?Solution
ATQ,
Odd digits = 1,3,5,7 = 4; Even = 2,4,6 = 3. Pattern: O-E-O-E-O → 3 odd used, 2 even used. Odd: 4P3 = 24, Even: 3P2 = 6 → Total = 24×6=144 → 144 numbers.
The Objective of ‘Make in India’ programme is:
When was the Right of Children to Free and Compulsory Education Act passed by Parliament?
The allocation of Pradhan Mantri Fasal Bima Yojana (PMFBY) has been kept at Rs ________ crore for financial year 2022-23.
Which of the following Indian states has the least number of operational airports as of 2022?
A new provision of the Finance Act, 2020 provides that an Indian citizen shall be deemed to be resident in India only if his total income, other than in...
What is the name of antibiotic containing chlorine which is produced by soil containing microorganisms and is effective for the treatment of typhoid fever?
Which of the following is a protected biosphere situated in Assam?
Consider the following statement in the context of Deendayal Antyodaya Yojana-Â National Rural Livelihoods Mission.
1.   It is a centrall...
Lal Kangaroo is the national animal of which of the following nations?
