For the following questions answer them individually
The marked price of a mobile phone is ₹36,000.A shopkeeper gives a discount of 11% on the marked price. Further, if a customer purchases it through credit card the discount increases by 15%. Pooja purchases it through the credit card. How much does she pay?
Simplify the folowing expression.
$$\frac{\left(59\times59\times 59\right) + \left(54 \times 54\times54\right)+\left(57 \times 57\times57\right) - 3 \left(59\right)\left(54\right)\left(57\right)}{\left(59+54+57\right)}$$
What is the surface area of a sphere whose diameter is 16.8 cm? [Use $$\pi = \frac{22}{7}$$]
Suraj travels 124 km at a speed of 31 km/h by bus, 96 km at a speed of 16 km/h using a car, and another 105 km at 7 km/h by car. Find his average speed for the entire distance travelled.
A mobile is marked at a price 25% above its cost price. At what discount percentage should it be sold to make a 10% profit?
As air is pumped into a spherical balloon, its radius increases from 7 cm to 14 cm.
Find the ratio of volume of the balloon's in both circumstances.
The average age of a man and his son is 56 years. The ratio of their ages is 11 : 5.
What is the son's age?
Study the given graph and answer the question that follows.
The graph shows the number of appeared candidates and passed candidates (in hundreds') in a test from six different institutions.
From which institution is the difference between the appeared candidates and passed candidates the maximum?