Find the fourth proportional to the numbers 60, 48, 30.
Find the fourth proportional to the numbers 60, 48, 30.
Correct answer is: A.
If the average of m numbers is n² and that of n numbers is m² , then the average of (m + n) numbers is?
If the average of m numbers is n² and that of n numbers is m² , then the average of (m + n) numbers is?
Correct answer is: A.
Ali is younger than Zia by 10 years. If 5 years back their ages were in the ratio 1:2, how old is Zia?
Ali is younger than Zia by 10 years. If 5 years back their ages were in the ratio 1:2, how old is Zia?
Correct answer is: C. (C) 25 years
null
4 + 4.44 + 44.4 + 4.04 + 444 = ?
4 + 4.44 + 44.4 + 4.04 + 444 = ?
Correct answer is: C. (C) 500.88
null
The mean proportional between 64 and 81 is:
The mean proportional between 64 and 81 is:
Correct answer is: A.
If the given value is 16a + 16b = 48. What is the average of a and b?
If the given value is 16a + 16b = 48. What is the average of a and b?
Correct answer is: D. The average is ( a + b ) / 2 = 3/2
null
A man spends Rs. 3500 per month and save 12 ½% of his income. His monthly income is?
A man spends Rs. 3500 per month and save 12 ½% of his income. His monthly income is?
Correct answer is: A.
If an alloy contains copper and silver in the ratio 3:7, then the percentage quantity of silver in the alloy is:
If an alloy contains copper and silver in the ratio 3:7, then the percentage quantity of silver in the alloy is:
Correct answer is: B. (B) 70%
null
The mean of five numbers is 18. If one number is excluded, their mean is 16. The excluded number is:
The mean of five numbers is 18. If one number is excluded, their mean is 16. The excluded number is:
Correct answer is: A.
There were 600 students in a school. Each offered either English or Hindi or both. If 75% offered English and 45% Hindi, how many offered both?
There were 600 students in a school. Each offered either English or Hindi or both. If 75% offered English and 45% Hindi, how many offered both?
Correct answer is: A.
A mixture contains 12% copper. How many kg of mixture is required to get 69 kg of copper?
A mixture contains 12% copper. How many kg of mixture is required to get 69 kg of copper?
Correct answer is: B. (B) 575 kg
null
The mean of 100 items was found to be 30. If at the time of calculation, two items were wrongly taken as 32 and 12 instead of 23 and 11, the correct mean is:
The mean of 100 items was found to be 30. If at the time of calculation, two items were wrongly taken as 32 and 12 instead of 23 and 11, the correct mean is:
Correct answer is: C. (C) 29.9
null
Two numbers are respectively 20% and 50% more than a third number. These two numbers are in the ratio:
Two numbers are respectively 20% and 50% more than a third number. These two numbers are in the ratio:
Correct answer is: B. (B) 2:5
null
Factorization of the expression y^2 + y-6 is?
- (y+2)(y-3)
- (y+3)(y-2)
- (y+3)(x-4)
- None
Explanation
To factorize the expression y^2 + y – 6, we need to find two numbers whose product is -6 and whose sum is 1 (the coefficient of the middle term).
These numbers are 3 and -2, so we can write:
y^2 + y – 6 = (y + 3)(y – 2)
The average of 6 numbers is 30. If the average of the first four is 25 and that of the last three is 35, the fifth number is:
The average of 6 numbers is 30. If the average of the first four is 25 and that of the last three is 35, the fifth number is:
Correct answer is: B. (B) 30
null
Three candidates in an election received 1136, 7636, and 11628 votes respectively. What percentage of total votes did the winning candidate get?
Three candidates in an election received 1136, 7636, and 11628 votes respectively. What percentage of total votes did the winning candidate get?
Correct answer is: A. (A) 57%
null
The 40th Prime Minister of New Zealand was:
The 40th Prime Minister of New Zealand was:
Correct answer is: B. (B) Jacinda Ardern
null
—– became a member of the World Trade Organization on December 11, 2001.
----- became a member of the World Trade Organization on December 11, 2001.
Correct answer is: C. (C) China
null
The civil war (1992-2002) is also known as the black decade.
A) Tajikistan
(B) Algerian
(C) Sudanese
(D) None of these
The correct answer is (B) Algerian
The Algerian civil war (1992-2002) is also known as the Black Decade.
It was a period of intense violence.
It was conflict between the government and Islamist insurgents (11 January 1992 to 8 February 2002)
The Rose Revolution occurred in:
The Rose Revolution occurred in:
Correct answer is: C. (C) Georgia
null
The Tulip Revolution took place in:
The Tulip Revolution took place in:
Correct answer is: A. (A) Kyrgyzstan
null
The Orange Revolution happened in:
The Orange Revolution happened in:
Correct answer is: A. (A) Ukraine
null
The War in Darfur, also nicknamed the Land Cruiser War, was a major armed conflict that began in Feb 2003.
The War in Darfur, also nicknamed the Land Cruiser War, was a major armed conflict that began in Feb 2003.
Correct answer is: C. Sudan
null
Cyclonic storm Nargis, a destructive cyclone, caused the worst national disaster in the history of:
Cyclonic storm Nargis, a destructive cyclone, caused the worst national disaster in the history of:
Correct answer is: C. (C) Myanmar
null
Barack Obama was elected the first African American president of the United States in:
Barack Obama was elected the first African American president of the United States in:
Correct answer is: B. (B) 2008
null