The circumference of base of a right circular cone is 88cm. If the height of the cone is 28cm, then what is the curved surface area of the cone ?
\(627\sqrt{3}\,\text{cm}^2\)
\(670\sqrt{3}\,\text{cm}^2\)
\(561\sqrt{5}\,\text{cm}^2\)
\(616\sqrt{5}\,\text{cm}^2\)
If \(x^4 + \frac{1}{x^4} = 47\)= 47, then what is the value of \(x^3 + \frac{1}{x^3}\) ?
The table given below shows production of car by two companies J and K in 5 years.
| Years | Companies | |
| J | K | |
| A | 120 | 50 |
| B | 80 | 60 |
| C | 40 | 120 |
| D | 30 | 100 |
| E | 20 | 70 |
L1 = The total production of car by J in all years.
L2 = The total production of car by K in all years.
What is the value of (L2 - L1) ?
The following pie chart reflects the total percentage of marks of 5 boys in an exam. The total marks for these boys in this exam is 800. The marks of Rohit is how much percentage less than that of Raju ?
The line chart given below shows the sales of bikes and cars of five companies L,M,N,P and Q.
Which of the following statement is correct?
I. The sales of bikes of company L and M together is 45.88 percent of the sales of cars of company P and Q together.
II. The total sales of bikes is 77.5 percent of the total sales of cars.
Two circles of radius of 6 cm each. They intersect each other such that each passes through the centre of the other. What is the length of the common chord ?