691.
In a right angle triangle with sides 12 cm and 16 cm and hypotenuse 20 cm, the length of altitude drawn on the hypotenuse
from the opposite vertex is K. Find the value of K.
(A)
6.9 cm
(B)
9.6 cm
(C)
6.8 cm
(D)
8.6cm
692.
In an election there were only two candidates. One of the candidates secured 35% of votes and is defeated by the other
candidate by 381 votes. The total number of votes polled is:
(A)
635
(B)
1028
(C)
1270
(D)
514
693.
If the radius of the base and slant height of the cone is 6 cm and 10 cm, respectively, then the volume of the cone is equal
to:
(A)
98 π cm3
(B)
106 π cm3
(C)
96π cm3
(D)
108 π cm3
694.
The area of three adjacent faces of a cuboidal box is 120 cm2, 72 cm2 and 60 cm2, respectively. Find the volume (in cm3) of
the box.
(A)
425
(B)
650
(C)
720
(D)
864
695.
If a person’s salary increases from ₹200 per day to ₹234 per day, then the percentage increase in the person’s salary is:
(A)
(B)
(C)
(D)
696.
Find the equation of the sphere having centre (-1,2,-3) and the radius of 3 units.
(A)
(B)
(C)
(D)
697.
If Tanya walks at the speed of 6 km/h, she misses a train by 2 minutes. However, if she walks at the speed of 8 km/h, she
reaches the station 3 minutes before the arrival of the train. The distance covered by Tanya to reach the station is:
(A)
3 km
(B)
2.5 km
(C)
2.75 km
(D)
2 km
698.
If 6 engineers can complete a work in 5 days and 5 skilled workers can complete the same work in 7 days, then the time
taken (in days) to complete the same work by 7 engineers and 4 skilled workers will be:
(A)
(B)
(C)
(D)
699.
An amount invested fetched a total simple interest of ₹4,050 at the rate of 9% per annum in 5 years. What is the amount
invested (in ₹)?
(A)
9,000
(B)
8,300
(C)
7,500
(D)
9,050
700.
The lines x+y = 10 and -3x+y = 2 have a unique solution. What is the distance (in units) between the unique solution and the
point of intersection of the line x+y = 10 and the x-axis?
