For the following questions answer them individually
The following pie chart shows the expenditure inccured by a person during a period under different heads as percentage of the total expenditure incurred by the person during the same period.
What is the ratio of the expenditure incurred by the person on food and on rent ?
The length of the tangent drawn to a circle of radius 12 cm from a point 18 cm away from the centre of the circle is:
A single discount equivement to two successive discount of 20% and 10% on the marked price of an article is
The average of 25 numbers is 13. If the average of the first 13 numbers is 11.5 and the average of the last 13 numbers is 14.5, then the middle number is:
If x + y + z = 25 , $$x^{3} + y^{3} + z^{3} = 85$$ and xyz = 20 , then find the value of $$x^{2} + y^{2} + z^{2} - xy- yz - zx$$.
A student's marks were incorrectly entered as 94 instead of 69. Due to this error, the average marks of the class got increased by 1.25. What is the number of students in the class?
The profits earned (in crores of rupees) by the two cellular companies in five consecutive years are given in table below.
In which year was the difference in nominal profits earned by Company A and Company B the maximum?
Shyamal covers 1 km in 10 min, whereas Radha covers the same distance in 8 min. By what distance does Radha beat Shyamal?