A man rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. What is his average speed for the entire trip approximately?

Byadmin October 8, 2019July 26, 2021

A man rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. What is his average speed for the entire trip approximately?

A. 11.2 kmph
B. 10 kmph
C. 10.2 kmph
D. 10.8 kmph

Mathematics Mcqs | Simplification and Approximation

? % of 400 + 40% of 160 = 17% of 400

? % of 400 + 40% of 160 = 17% of 400

A. 4
B. 0.1
C. 1
D. 0.4
Explanation:
? % of 400 + 40% of 160 = 17% of 400
?/100 of 400 + 40/100 of 160 = 17/100 of 400
?(4) + 64 = 68 => ? = 1

Read More ? % of 400 + 40% of 160 = 17% of 400
Mathematics Mcqs | Percentage Mcqs

In a class of 140 students, 60% of them passed. By what percent is the number of students who passed more than the number of failed students?

In a class of 140 students, 60% of them passed. By what percent is the number of students who passed more than the number of failed students?

A. 80%
B. 20%
C. 40%
D. 50%
E. None of these
Explanation:
Number of students passed = 60% of 140 = 60/100 * 140 = 84
Number of students failed = 140 – 84 = 56.
Required percentage = 28/56 * 100 = 50%.

Read More In a class of 140 students, 60% of them passed. By what percent is the number of students who passed more than the number of failed students?
Arithmetic Mcqs | Average Mcqs | Basic Maths Mcqs | Mathematics Mcqs

The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is___________?

The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is___________?

A. 35 years
B. 30 years
C. 40 years
D. None of these
Explanation:
27×3+3×3=90 hsbnd,wife n child
20×2+5×2=50 wide n child
Hsbnd age= 90-50
= 40 yrs

Read More The average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is___________?
Areas | Mathematics Mcqs

The area of a rectangle is 12 sq.metres and it’s length is 3 times that of it’s breadth. What is the perimeter of the rectangle?

The area of a rectangle is 12 sq.metres and it’s length is 3 times that of it’s breadth. What is the perimeter of the rectangle?

A. 14m
B. 18m
C. 4m
D. None of these

Explanation:
Let the breadth be x metres , then it’s length = 3x metres
=>3x × x =12
=> x2= 4
=> x =2 l=6m, b =2m
=> Perimeter = 2(6+2)m = 16m

Read More The area of a rectangle is 12 sq.metres and it’s length is 3 times that of it’s breadth. What is the perimeter of the rectangle?
Mathematics Mcqs | Volumes

What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?

What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?

A. 344.35 cm2
B. 344.35 cm2
C. 344.35 cm2
D. None of these

Read More What is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?
Mathematics Mcqs | Percentage Mcqs

The salary of a worker is first increased by 30% and afterwards reduced by 30%. What is net change in his salary?

The salary of a worker is first increased by 30% and afterwards reduced by 30%. What is net change in his salary?

A. 90% increase
B. 45% increase
C. 9% decrease
D. Same as before
Explanation:
(30 * 30)/100 = 9% decrease

Read More The salary of a worker is first increased by 30% and afterwards reduced by 30%. What is net change in his salary?

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