List of top Mathematics Questions

A can do a work in 18 days, B in 9 days and C in 6 days. A and B start working together and after 2 days C joins them. What is the total number of days taken to finish the work?
The surface area of a cube is 150 sq cm. What is the length of its diagonal in cm?
If the circumference and the area of a circle are numerically equal, then what is the numerical value of the diameter?
An inspector rejects.08% of the meters as defective. How many will he examine to reject 2?
In a survey, it was found that 65% of the people watched news on TV, 40% read in newspaper, 25% read newspaper and watched TV. What percentage of people neither watched TV nor read newspaper?
x% of y is y% of
A circular park of 20-metre diameter has a circular path just inside the boundary of width 1 metre. The area of the path is
A right-angled triangle has a hypotenuse of 13 cm and one side of 12 cm. Its area is
A machine is sold at a profit of 10%. Had it been sold for Rs. 40 less, there would have been a loss of 10%. What was the cost price?
If two numbers are in the ratio 6:13 and their least common multiple is 312, then the sum of the numbers is
If \(\frac{5a + 3b}{2a - 3b} = \frac{23}{5}\), then the value of a: b is
A travels from B to C a distance of 250 miles in 5.5 hours. He returns to B in 4 hours 40 minutes. His average speed is
Two dice are tossed. The probability that the total score is a prime number is
In how many ways can six different rings be worn on four fingers of one hand?
What is the next number in the series given below?
53, 48, 50, 50, 47
Father's age is 4 times that of his son. 5 years back, it was 7 times. His age now is
A salesman averages Rs. 240 during a normal 40-hour week. During a sale, his rates are increased by 50%. What is his commission if he puts in 60 hours during the sale ?
What is the next number in the series given below ?
2, 5, 9, 14, 20
The distance of a focus of the ellipse $9x^2+16y^2 =144$ from an end of the minor axis is
$\tan^{-1}\frac{1}{3}+\tan^{-1}\frac{1}{7}+\tan^{-1}\frac{1}{18}+.........+\tan^{-1}\left(\frac{1}{n^2+n+1}\right)+....to\infty$ is equal to
If $p \Rightarrow (q \vee r)$ is false, then the truth values of $p, q, r$ are respectively
If one end of a diameter of the ellipse $ 4x^2 + y^2 = 16$ is $(\sqrt{3},2)$, then the other end is
The line $ y = 2x + c$ touches the ellipse $\frac{x^2}{16}+\frac{y^2}{4}=1$ if c is equal to
The locus of the centre of the circle \(x^2 + y^2 + 4x \,\cos \,\theta - 2y\, sin \theta - 10 = 0\) is
If the normal at one end of a latus-rectum of an ellipse $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$ passes through one extremity of the minor axis, then the eccentricity of the ellipse is given by the equation