Mathematics Mcqs | Probability

In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?

Byadmin July 11, 2019August 4, 2021

In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?

A. 4/11
B. 1
C. 2/33
D. 19/66

Mathematics Mcqs | Profit and Loss Mcqs

A man purchases an electric heater whose printed price is 160 if he received two successive discounts of 20% and 10% he paid:

A man purchases an electric heater whose printed price is 160 if he received two successive discounts of 20% and 10% he paid:

A. Rs. 112
B. Rs. 129.60
C. Rs. 119.60
D. Rs. 115.20
Explanation:
Price after 1st discount = 80% of Rs. 160 = Rs. 128

Price after 2nd discount = 90% of Rs. 128 = Rs. 115.20

Read More A man purchases an electric heater whose printed price is 160 if he received two successive discounts of 20% and 10% he paid:
Mathematics Mcqs | Percentage Mcqs

In a school of 850 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?

In a school of 850 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?

A. 173
B. 163
C. 153
D. 143
44 + 28 + 10 = 82%
100 – 82 = 18%
850 * 18/100 = 153

Read More In a school of 850 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?
Arithmetic Mcqs | Average Mcqs | Basic Maths Mcqs | Mathematics Mcqs

A pupil’s marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is___________?

A pupil’s marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is___________?

A. 10
B. 20
C. 40
D. 73
Explanation:
Let there be x pupils in the class.
Total increase in marks = (x * 1/2) = x/2
x/2 = (83 – 63) => x/2 = 20 => x = 40

Read More A pupil’s marks were wrongly entered as 83 instead of 63. Due to the average marks for the class got increased by half. The number of pupils in the class is___________?
Mathematics Mcqs | Men Food Mcqs

In a camp sufficient food was provided to 500 men to last for 10 days. But after 5 days 200 more men joined. How long the food will last for after joining the 2000 new men?

In a camp sufficient food was provided to 500 men to last for 10 days. But after 5 days 200 more men joined. How long the food will last for after joining the 2000 new men?

A. 3
B. 8
C. 5
D. 1

Read More In a camp sufficient food was provided to 500 men to last for 10 days. But after 5 days 200 more men joined. How long the food will last for after joining the 2000 new men?
Mathematics Mcqs | Percentage Mcqs

If A got 80 marks and B got 60 marks, then what percent of A’s mark is B’s mark?

If A got 80 marks and B got 60 marks, then what percent of A’s mark is B’s mark?

A. 60%
B. 80%
C. 65%
D. 75%
E. None of these
Explanation:
A’s marks = 80 ; B’s marks = 60.
Let x% of A = B => x/100 * 80 = 60
=> x = (60 * 100)/80 = 75
B’s marks is 75% of A’s marks.

Read More If A got 80 marks and B got 60 marks, then what percent of A’s mark is B’s mark?
Mathematics Mcqs | Simplification and Approximation

20% of 40 + ? % of 80 = 120

20% of 40 + ? % of 80 = 120

A. 140
B. 120
C. 160
D. 180
Explanation:
20% of 40 + ? % of 80 = 120
=> 800/100 + ?/100 * 80 = 120
=> ? = 140

Read More 20% of 40 + ? % of 80 = 120