Two circles having equal radius intersect each other such that each passes through the center of the other. Sum of diameter of these two circles is 84 cm. What is the length of the common chord?
\(21\sqrt{3}\,\text{cm}\)
\(14\sqrt{3}\,\text{cm}\)
\(28\sqrt{3}\,\text{cm}\)
\(24\sqrt{3}\,\text{cm}\)
What is the value of 982 - 972 + 962 - 952 + 942 - 932 +….........122 - 112 ?
The line chart given below shows the production of bike and truck by five companies.
Which of the following statement is NOT correct?
I. The total production of truck by all the 5 companies is 201.50 percent of the total production of bike by all the 5 companies.
II. The average production of bike and truck by company R is 800.
If \(\frac{1}{x-2}+x=8\) , then what is the value of \(\frac{1}{(x-2)^2}+(x-2)^2\) ?
The table given below shows the production of refrigerator by 6 companies. What is the average production of refrigerator by all six companies ?
| Companies | Production |
| P | 200 |
| Q | 140 |
| R | 120 |
| S | 80 |
| T | 40 |
| U | 100 |