For the following questions answer them individually
Height of a right circular cone is 28 cm. If diameter of its base is 42 cm, then what will be the curved surface area of the cone?
What is the value of $$\left[\frac{4}{5} \div \frac{5}{8} - \frac{7}{5} + \frac{2}{15} of \left(\frac{3}{2} \div \frac{4}{5}\right)\right]$$?
A train is moving with a uniform speed. Train crosses a bridge of length 340 meters in 35 seconds and a bridge of length 460 meters in 38 seconds. What is the speed of the train?
The sides of a triangle are in the ratio 5 : 2 : 1. If the perimeter of the triangle is 88 cm, then what will be the length of the largest side?
If Rohit alone can complete one-fourth of a work in 32 days, then in how many days Rohit alone can complete the whole work?
The pie chart given below shows the time taken in 7 different procedures J1, J2, J3, J4, J5, J6 and J7 in making a car as a percentage of total time taken. The total time taken in making one car is 1200 hours.
What is the average time taken in procedures J3, J6 and J7?
If cost price of 80 articles is equal to the selling price of 50 articles, then what will be the profit percentage?
The volume of a right circular cone is equal to the volume of that right circular cylinder whose height is 48 cm and diameter of its base is 20 cm.If the height of the cone is 16 cm, then what will be the diameter of its base?
A sum of ₹ 12500 gives interest of ₹ 5625 in T years at simple interest. If the rate of interest is 7.5%, then what will be the value of T?
Speed of Deepak and Vinod are in the ratio of 19 : 12 respectively. If speed of Vinod is 84 km/hr, then what will be the speed of Deepak?