If Ais the area of a right angled triangle and bis one of the sides containing the right angle, then what is the length of the altitude on the hypotenuse?
 View Answer
|
 Discuss in Forum
|
2 .
A parallelogram and a rectangle stand on the same base and on the same side of the base with the same height. If $I_ 1$ , $I_ 2$ be the perimeters of the parallelogram and the rectangle respectively, then which one of the following is correct?
|
View Answer
|
Discuss in Forum
|
3 .
The diameter of two circles are 18 cm and 8 cm. The distance between their centres is 13 cm. What is the number of common tangents?
|
View Answer
|
Discuss in Forum
|
4 .
What is the geometric means of the observations
125, 729, 1331?
|
View Answer
|
Discuss in Forum
|
5 .
The mean of 100 values is 45. If 15 is added to each of the first forty values and 5 is subtracted from each of the remaining sixty values, the new mean becomes
|
View Answer
|
Discuss in Forum
|
6 .
A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 6 cm and length of the tube is 10 cm. If the thickness of the metal used is 1 cm, then the outer curved surface area of the tube is
|
View Answer
|
Discuss in Forum
|
7 .
For a plot of land of 100 m $\times$ 80 m, the length to be raised by spreading the earth from stack of a rectangular base 10 m $\times$ 8 m and vertical section being a trapezium of height 2 m. The top of the stack is 8 m $\times$ 5 m. How many centimeters can the level raised?
|
View Answer
|
Discuss in Forum
|
8 .
If $3^ x$ + 27($3^ {-x}$ ) = 12, then what is the value of x?
|
View Answer
|
Discuss in Forum
|
9 .
For which value of kdoes the pair of equations$ x^ 2$ - $y^ 2$ = 0 and $(x- k)^ 2$ + $y^ 2$ = 1 yield a unique positive solution of x?
|
View Answer
|
Discuss in Forum
|
10 .
The expression $sin^ 2$ x +$ cos^ 2$ x - 1 = 0 is satisfied by how many values of x?
|
View Answer
|
Discuss in Forum
|
Sponsored Links
ssc onlineTodaysprint
Advertisements