Mathematics Mcqs | Volumes

A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m?

Byadmin July 12, 2019August 4, 2021

A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m?

A. 24000
B. 23000
C. 22000
D. 25000
25 * 2 * 0.75 = 20/100 * 10/100 * 7.5/100 * x
25 = 1/100 * x => x = 25000

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

Find the average of all the numbers between 6 and 34 which are divisible by 5.

Find the average of all the numbers between 6 and 34 which are divisible by 5.

A. 18
B. 20
C. 24
D. 30
Explanation:
Average = (10 + 15 + 20 + 25 + 30)/5 = 100/5 = 20

Read More Find the average of all the numbers between 6 and 34 which are divisible by 5.
Mathematics Mcqs | Pipes and Cisterns

Two pipes A and B can fill a tank in 4 and 5 hours respectively. If they are turned up alternately for one hour each, the time taken to fill the tank is?

Two pipes A and B can fill a tank in 4 and 5 hours respectively. If they are turned up alternately for one hour each, the time taken to fill the tank is?

A. 2 hrs 15 min
B. 4 hrs 24 min
C. 5 hrs
D. 3 hrs
Explanation:
1/4 + 1/5 = 9/20
20/9 = 2 2/9
9/20 * 2 = 9/10 —- 4 hours
WR = 1 – 9/10 = 1/10
1 h —- 1/4
? —– 1/10
2/5 * 60 = 24 = 4 hrs 24 min

Read More Two pipes A and B can fill a tank in 4 and 5 hours respectively. If they are turned up alternately for one hour each, the time taken to fill the tank is?
Mathematics Mcqs | Quadratic Equations

I. a2 + 8a + 16 = 0, II. b2 – 4b + 3 = 0 to solve both the equations to find the values of a and b?

I. a2 + 8a + 16 = 0,
II. b2 – 4b + 3 = 0 to solve both the equations to find the values of a and b?

A. If a < b
B. If a ≤ b
C. If the relationship between a and b cannot be established
D. If a > b
I. (a + 4)2 = 0 => a = -4
II.(b – 3)(b – 1) = 0
=> b = 1, 3 => a

Read More I. a2 + 8a + 16 = 0, II. b2 – 4b + 3 = 0 to solve both the equations to find the values of a and b?
Mathematics Mcqs | Volumes

Find the length of the wire required to go 15 times round a square field containing 69696 m2.

Find the length of the wire required to go 15 times round a square field containing 69696 m2.

A. 15840 m
B. 16840 m
C. 15820 m
D. 15640 m
a2 = 69696 => a = 264
4a = 1056
1056 * 15 = 15840

Read More Find the length of the wire required to go 15 times round a square field containing 69696 m2.
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

64 is what percent of 80?

64 is what percent of 80?

A. 80%
B. 70%
C. 60%
D. 64%
Explanation:
Let x percent of 80 be 64.
80 * x/100 = 64 => x = (64 * 100)/80 => x = 80.
80% of 80 is 64.

Read More 64 is what percent of 80?

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