861.
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)
862.
Find the equation of the sphere having centre (-1,2,-3) and the radius of 3 units.
(A)
(B)
(C)
(D)
863.
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
864.
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)
865.
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
866.
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?
(A)
(B)
(C)
(D)
867.
A tangent is drawn from a point that is at a distance of 37 cm from center of the circle O, and diameter is 24 cm. The length
(in cm) of the tangent is:
(A)
30
(B)
35
(C)
28.16
(D)
37
868.
Consider AD is a tangent to a circle of radius 6 cm. AC is a secant meeting the circle at B and CD is a diameter. If AB is 7 cm,
then the value of AC (in cm) is:
(A)
9
(B)
18
(C)
20
(D)
16
869.
A number is first decreased by 18% and the resulting number is then increased by 25%. What is the overall percentage
change in the original number?
(A)
Decrease by 2.5%
(B)
Increase by 3.5%
(C)
Increase by 2.5%
(D)
Decrease by 3.5%
870.
PQ is the diameter of a circle with centre O. PT is a tangent touching the circle at P. The secant QT intersects the circle at S.
O and S are joined. If ∠ SOP = 104°, what is the measure (in degrees) of ∠PTQ?
