For the following questions answer them individually
If the difference of the mode and median of a data is 38, then the difference of the median and mean is:
A. B and C are boxes with marbles in the ratio 2 : 3 : 4. The total number of marbles in the boxes is 360. The above ratio can be changed to 3 : 8 : 7 by which of the following?
(i) By transferring 20 marbles from A to B and 20 marbles from C 10 B.
(ii) By u.msferring 20 marbles from A to Band 10 marbles from C 10 B.
(iii) By transfen-ing 40 marbles from A to Band 20 marbles from C to B.
(iv) By transferring 30 marbles from A to B and 30 marbles from C to B.
The average weight of 30 boys is more than average weight of 20 girls by 5 kg. If the total weight of 30 boys is 1050 kg. then rhe total weight of 20 girls is:
The internal and external diameters of a hollow hemispherical bowl are 18 cm and 22 cm, respectively. The total surface area (in $$cm^{2}$$) of the bowl is:
The value of $$\frac{\frac{1}{4}\div\frac{1}{2}\left(\frac{2}{5}-\frac{1}{3}\right)}{1\frac{2}{3 } of \frac{3}{4}-\frac{1}{4} of \frac{2}{3}}$$ is:
A man takes 12 minutes to cover a certain distance at a speed of 8 km/h. If he walks at a speed of 12 km/h. how long will he take to cover the same distance?
The sum of the length, breadth and height of a cuboid is 28 cm. lf the total surface area of the cuboid is 558 $$cm^{2}$$ then its diagonal is:
The average of three numbers is 30. The first number is $$\frac{2}{3}$$ times of the second number, and the second number is $$\frac{3}{4}$$ of the third number. The first number is:
The marked price of an item is ₹5,800. If Ravi earns a profit of 25% after allowing a discount of 20%, then the cost price of the item is:
