Mathematics Mcqs | Quadratic Equations

The sum and the product of the roots of the quadratic equation x(power 2) + 20x + 3 = 0 are?

Byadmin July 10, 2019August 4, 2021

The sum and the product of the roots of the quadratic equation x(power 2) + 20x + 3 = 0 are?

A. 10, 3
B. -10, 3
C. -20, 3
D. -10, -3
Sum of the roots and the product of the roots are -20 and 3 respectively.

Mathematics Mcqs | Problems on L.C.M and H.C.F

H.C.F of 4 * 27 * 3125, 8 * 9 * 25 * 7 and 16 * 81 * 5 * 11 * 49 is___________?

H.C.F of 4 * 27 * 3125, 8 * 9 * 25 * 7 and 16 * 81 * 5 * 11 * 49 is___________?

A. 180
B. 360
C. 540
D. 1260
Explanation:
4 * 27 * 3125 = 22 * 33 * 55;
8 * 9 * 25 * 7 = 23 * 32 * 52 * 7;
16 * 81 * 5 * 11 * 49 = 24 * 34 * 5 * 72 * 11
H.C.F = 22 * 32 * 5 = 180.

Read More H.C.F of 4 * 27 * 3125, 8 * 9 * 25 * 7 and 16 * 81 * 5 * 11 * 49 is___________?
Mathematics Mcqs | Percentage Mcqs

If 20% of a number, then 120% of that number will be_________?

If 20% of a number, then 120% of that number will be_________?

A. 20
B. 120
C. 360
D. 720
Explanation:
Let the number x. Then,
20% of x = 120
x = (120 * 100)/20 = 600
120% of x = (120/100 * 600) = 720.

Read More If 20% of a number, then 120% of that number will be_________?
Basic Maths Mcqs | Mathematics Mcqs | Time and Work Mcqs

8 children and 12 men complete a certain piece of work in 9 days. If each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work ?

8 children and 12 men complete a certain piece of work in 9 days. If each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work ?

A. 6 days
B. 8 days
C. 10 days
D. 12 days
2 children = 1 man
(8 children + 12 men ) = 16 men
Now, less men, more days
12 : 16 : 9 : x
x = 16×9/12=12 days

Read More 8 children and 12 men complete a certain piece of work in 9 days. If each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work ?
Mathematics Mcqs | Pipes and Cisterns

A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in?

A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in?

A. 16 hrs
B. 20 hrs
C. 40 hrs
D. 25 hrs
Explanation:
1/8 – 1/x = 1/10
x = 40

Read More A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in?
interest Mcqs | Mathematics Mcqs

The simple interest on Rs.500 at 6% per annum from May 3rd to July 15th in the same year is_________?

The simple interest on Rs.500 at 6% per annum from May 3rd to July 15th in the same year is_________?

A. Rs.8
B. Rs.6
C. Rs.4
D. Rs.9

Read More The simple interest on Rs.500 at 6% per annum from May 3rd to July 15th in the same year is_________?
Mathematics Mcqs | Percentage Mcqs

p is six times as large as q. The percent that q is less than p is:________?

p is six times as large as q. The percent that q is less than p is:________?

A. 83 1/3
B. 16 2/3
C. 90
D. 60
p = 6q.
Thus, q is less than p by 5q
q is less than p by (5q/6q x 100)% = 83 1/3 %

Read More p is six times as large as q. The percent that q is less than p is:________?

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