The mean mark of 100 students was found to be 40. Later on, it was found that a score of 53 was misread as 83. The correct mean corresponding to the correct Score is
39.7
37.9
29.7
27.9
Additional Questions
|
The mean of the 5 numbers is 32. If one of the numbers is excluded, then the mean is reduced by 4. The excluded number is |
Answer |
|
A garden is in the form of a rectangle of dimension 30 m x 20 m. A path of width 1.5 m is laid all around the garden on the outside at the rate of Rs.6 per sq.m. What is the total expense? |
Answer |
|
simplify: 2.$\sqrt[3]{40}$+3.\sqrt[3]{625}$-4.\sqrt[3]{320}$ |
Answer |
|
A sector containing an angle of 240° is cut off from a circle of radius 42 cm and folded into a cone, then the curved surface area of the cone is |
Answer |
|
Eight men working 9 hours a day can do a piece of work in 28 days. In how many days will 12 men working for 7 hours a day do the same work? |
Answer |
|
The largest of 100 measurements is 3.84 kg. If the range is 2.46 kg, then the Smallest measurement is |
Answer |
|
The measures of the angles of a triangle are in the ratio 2:4: 6, then the angles of the triangle are |
Answer |
|
If x = 2 + $\sqrt{3}$, then the value of $x^{2}$ - $\dfrac{1}{x^{2}}$ Χ |
Answer |
|
The distance between two places is 61 km. If a two wheeler takes hours to cross the distance, then what is the speed of the two wheeler? |
Answer |
|
The next number of the sequence |
Answer |