For the following questions answer them individually
If three equal cubes are placed adjacently in a row, then the ratio of the total surface area of the new cuboid to that of the sum of the surface areas of the three cubes will be
The Qutab Minar casts a shadow 150 m long at the same time when the Vikas Minar casts a shadow 120 m long on the ground. If the height of the Vikas Minar is 80 m, find the height of the Qutab Minar.
Due to global recession Starting in January, Ram’s monthly salary of Rs 8000 was cut by 10%. The monthly expenses which were Rs 6000, increased at the rate of 5% per month. Since which month will he have no savings if the recession lasted for a year?
An oil refinery takes 100 L of crude oil as input and after refining for 1 hour gives certain amount of output oil X litres. This can be sold in the market at a profit of Rs 30/L. If this oil is further refined for $$\frac{1}{2}$$ h it gives oil Y litre. This can be sold at a profit of Rs. 50/L. Output and input ratio at both the stages is 90%. The maximum amount that can't be earned from 1000 L of crude input is
The radius of a cylinderical cistern is 10 m and its height is 15 m. Initially the cistern is empty. We start filling the cistern with water through a pipe whose diameter is 50 cm. Water is coming out of the pipe with a velocity of 5 m/s. How many minutes will it take in filling the cistern with water?
If $$m$$ and $$n$$ are natural number such that $$2^m - 2^n = 960$$, what is the value of $$m$$?
If an angle of a triangle remain unchanged but each of its two including sides is doubled then by what factor does the area get multiplied?
A number when divided by 765 leaves a remainder 42. What will be the remainder if the number is divided by 17?
A mixture (40 L) contains coniac and water in the ratio $$3 : 1$$. To make the ratio $$5 : 2$$. How much additional amount of water is required?