Sarfaraz obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, Mathematics, Physics, Chemistry and Biology. What are his average marks?

Byadmin July 10, 2019August 4, 2021

Sarfaraz obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, Mathematics, Physics, Chemistry and Biology. What are his average marks?

A. 65
B. 69
C. 72
D. None of these
Average = (76 + 65 + 82 + 67 + 85)/5 = 375/5 = 75

Arithmetic Mcqs | Average Mcqs | Basic Maths Mcqs | Mathematics Mcqs

The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them.

The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them.

A. 57.4
B. 57.5
C. 58.9
D. 59.1
Correct mean = 30x 58.5 -57 +75/30
= 1755+18/30 = 1773/30 = 59.1

Read More The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them.
Compound Interest | Mathematics Mcqs

Find the Compound Interest on Rs. 15,625 for 9 months at 16% per annum compounded quarterly?

Find the Compound Interest on Rs. 15,625 for 9 months at 16% per annum compounded quarterly?

A. Rs. 1851
B. Rs. 1941
C. Rs. 1951
D. Rs. 1961
Explanation:
P = Rs. 15625, n = 9 months = 3 quarters, R = 16% p.a. per quarter.
Amount = [15625 * (1 + 4/100)3]
= (15625 * 26/25 * 26/25 * 26/25) = Rs. 17576 C.I. = 17576 – 15625 = Rs. 1951.

Read More Find the Compound Interest on Rs. 15,625 for 9 months at 16% per annum compounded quarterly?
Areas | Mathematics Mcqs

A rectangular tank measuring (5m x 4.5m x 2.1m) is dug in the center of the field measuring 13.5m x 2.5m. The earth dug out is speed every over the remaining portion of the field raised?

A rectangular tank measuring (5m x 4.5m x 2.1m) is dug in the center of the field measuring 13.5m x 2.5m. The earth dug out is speed every over the remaining portion of the field raised?

A. 4m
B. 4.1cm
C. 4.2cm
D. 4.3m

Read More A rectangular tank measuring (5m x 4.5m x 2.1m) is dug in the center of the field measuring 13.5m x 2.5m. The earth dug out is speed every over the remaining portion of the field raised?
Mathematics Mcqs | Profit and Loss Mcqs

The profit earned by selling an article for Rs. 832 is equal to the loss incurred when the same article is sold for Rs. 448. What should be the sale price for making 50% profit?

The profit earned by selling an article for Rs. 832 is equal to the loss incurred when the same article is sold for Rs. 448. What should be the sale price for making 50% profit?

A. Rs. 920
B. Rs. 960
C. Rs. 1060
D. Rs. 1200
Explanation:
Let C.P. = Rs. x.
Then, 832 – x = x – 448
2x = 1280 => x = 640
Required S.P. = 150% of Rs. 640 = 150/100 * 640 = Rs. 960.

Read More The profit earned by selling an article for Rs. 832 is equal to the loss incurred when the same article is sold for Rs. 448. What should be the sale price for making 50% profit?
Arithmetic Mcqs | Average Mcqs | Basic Maths Mcqs | Mathematics Mcqs

The average age of three boys is 15 years and their ages are in proportion 3:5:7. What is the age in years of the youngest boy?

The average age of three boys is 15 years and their ages are in proportion 3:5:7. What is the age in years of the youngest boy?

A. 15
B. 9
C. 18
D. 21
3x + 5x + 7x = 45
x =3
3x = 9

Read More The average age of three boys is 15 years and their ages are in proportion 3:5:7. What is the age in years of the youngest boy?
Mathematics Mcqs | Profit and Loss Mcqs

If books bought at prices ranging from Rs. 200 to Rs. 350 are sold at prices ranging from Rs. 300 to Rs. 425. What is the greatest possible profit that might be made in selling 8 books?

If books bought at prices ranging from Rs. 200 to Rs. 350 are sold at prices ranging from Rs. 300 to Rs. 425. What is the greatest possible profit that might be made in selling 8 books?

A. Rs. 400
B. Rs. 600
C. Cannot be determined
D. None of these
Explanation:
Profit is maximum when C.P is minimum and S.P Maximum.
Thus, C.P = Rs. (200 × 8) = Rs. 1600
S.P = Rs. (425 × 8) = Rs. 3400
Gain = Rs. 1800

Read More If books bought at prices ranging from Rs. 200 to Rs. 350 are sold at prices ranging from Rs. 300 to Rs. 425. What is the greatest possible profit that might be made in selling 8 books?

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