For the following questions answer them individually
A sector is cut from a circle of diameter 42 cm. If the angle of the sector is $$150^\circ$$ then what is its area in $$cm^2$$.
(Take $$\pi = \frac{22}{7}$$)
The present ages of A and are in the ratio 15 : 8. After 8 years their ages will be in the ratio 17 : 10. What will be the ratio of ages of A and B after 10 years from now?
A circus tent is cylindrical to a height of 3 meters and conical above it. If the radius of the base is 52.5 m and the slant height of the cone is 52 m,then the total area of the canvas required to make it is:
The compound interest on a sum of ₹ 24500 at 10% p.a for $$2\frac{2}{5}$$ years interest compounded yearly is:
Study the following table, which shows the number of units of a product manufactured and sold by a company in five years, and answer questions.
What percent of total units of the product manufactured in 2013 and 2015 is the total units unsold during the five years? (correct to one decimal place)
The ratio of the total number of units sold in 2014 and 2015 to the number of units manufactured in 2017 is:
For the following questions answer them individually
The value of $$1.6 \div 1.6$$ of $$1.6 + 0.6$$ of $$1.4 \div 0.5 - 0.001 \times 1.5 \div 0.075$$ lies between:
The average of 10 numbers is 41. The average of first 3 numbers is 39.4 and the average of last 4 numbers is 43.5. $$4^{th}$$ number is 2 more than the $$5^{th}$$ number and 0.2 more than the $$6^{th}$$ number. What is the average of the $$4^{th}$$ and $$6^{th}$$ numbers
The average age of 24 students in a class is 15.5 years. The age of their teacher is 28 years more than the average of all twenty five. What is the age of the teacher in years?
If 12, x, 8 and 14 are in proportion, then what is the mean proportional between (x - 12) and (x + 4)?