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Q81.If 10 person can do a job in 20 days than 20 person will twice efficiency can do the same job in:
Correct Answer: B
Double the workers at double efficiency = 4x total work rate, so time = 20/4 = 5 days.
Q82.Working 5 hours a day,A can complete a work in 8 days and working 6 hours a day, B can complete the same work in 10 days. Working 8 hours a day, they can jointly complete the work in
Correct Answer: A
Combining their hourly work rates and dividing by an 8-hour workday gives approximately 3 days.
Q83.The time of Nafli Itekaf is:
Correct Answer: C
The commonly cited period for Nafli I'tikaf is marked here as 3 days.
Q84.When International human rights days celebrated
Correct Answer: B
International Human Rights Day is celebrated on 10 December.
Q85.42 women can do a piece of work in 18 days.How many women be required to do the same piece of work in 21 days
Correct Answer: C
42×18 = 756 woman-days. For 21 days: 756/21 = 36 women.
Q86.Which country declared 2019 the “Year of Tolerance”?
Correct Answer: C
The United Arab Emirates declared 2019 the Year of Tolerance.