Basic Maths Mcqs | Mathematics Mcqs | Time and Work Mcqs

To fill a cistern, pipes P, Q & R take 20, 15 & 12 minutes respectively. The time in minutes that the three pipes together will take to fill the cistern is:__________?

Byadmin October 7, 2019July 26, 2021

To fill a cistern, pipes P, Q & R take 20, 15 & 12 minutes respectively. The time in minutes that the three pipes together will take to fill the cistern is:__________?

A. 5 min
B. 10 min
C. 15 min
D. 20 min

Areas | Mathematics Mcqs

The base of a right triangle is 8 and hypotenuse is 10. Its area is________?

The base of a right triangle is 8 and hypotenuse is 10. Its area is________?

A. 12
B. 80
C. 59
D. 24

Read More The base of a right triangle is 8 and hypotenuse is 10. Its area is________?
Mathematics Mcqs | Volumes

The radius of a wire is decreased to one –third if volume remains the same length will increase

The radius of a wire is decreased to one –third if volume remains the same length will increase

A. 1 Time
B. 3 times
C. 6 times
D. 9 times

Read More The radius of a wire is decreased to one –third if volume remains the same length will increase
Mathematics Mcqs | Volumes

A tank 3 m long, 2 m wide and 1.5 m deep is dug in a field 20 m long and 14 m wide. If the earth dug out is evenly spread out over the field, the level of the field will raise by nearly?

A tank 3 m long, 2 m wide and 1.5 m deep is dug in a field 20 m long and 14 m wide. If the earth dug out is evenly spread out over the field, the level of the field will raise by nearly?

A. 0.299 cm
B. 0.29 cm
C. 2.98 cm
D. 4.15 cm

Read More A tank 3 m long, 2 m wide and 1.5 m deep is dug in a field 20 m long and 14 m wide. If the earth dug out is evenly spread out over the field, the level of the field will raise by nearly?
Mathematics Mcqs | Percentage Mcqs

The ratio of the prices of three articles X, Y and Z is 8 : 5 : 3. If the prices of X , Y and Z are increased by 25%, 20% and 33 1/3% respectively, then what would be the ratio of the new prices of X, Y and Z?

The ratio of the prices of three articles X, Y and Z is 8 : 5 : 3. If the prices of X , Y and Z are increased by 25%, 20% and 33 1/3% respectively, then what would be the ratio of the new prices of X, Y and Z?

A. 5 : 3 : 1
B. 5 : 3 : 2
C. 10 : 7 : 4
D. 10 : 8 : 5
E. None of these
Explanation:
Let the prices of X, Y and Z be 8k, 5k and 3k respectively.
After increase
Price of X = 8k * 125/100 = 10k
Price of Y = 5k * 120/100 = 6k
Price of Z = 3k * (133 1/3)/100 = 4k
Required ratio = 10k : 6k : 4k = 5 : 3 : 2.

Read More The ratio of the prices of three articles X, Y and Z is 8 : 5 : 3. If the prices of X , Y and Z are increased by 25%, 20% and 33 1/3% respectively, then what would be the ratio of the new prices of X, Y and Z?
Mathematics Mcqs | Quadratic Equations

If the roots of the equation 2×2 – 5x + b = 0 are in the ratio of 2:3, then find the value of b?

If the roots of the equation 2×2 – 5x + b = 0 are in the ratio of 2:3, then find the value of b?

A. 3
B. 4
C. 5
D. 6
Let the roots of the equation 2a and 3a respectively.
2a + 3a = 5a = -(- 5/2) = 5/2 => a = 1/2
Product of the roots: 6a2 = b/2 => b = 12a2
a = 1/2, b = 3.

Read More If the roots of the equation 2×2 – 5x + b = 0 are in the ratio of 2:3, then find the value of b?
interest Mcqs | Mathematics Mcqs

A sum of money amounts to Rs 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is :

A sum of money amounts to Rs 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is :

A. 5%
B. 8%
C. 12%
D. 15%
S.I. for 3 years = Rs. (12005 – 9800) = Rs. 2205. S.I. for 5 years = Rs. ( 2205/3 X 5 ) = Rs. 3675. So Principal = Rs. (9800 – 3675) = Rs. 6125. Hence, rate = ( 100 X 3675/6125 X 5 X 5 )% = 12%.

Read More A sum of money amounts to Rs 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is :