A. 45
B. None of these
C. 54
D. 40
Mathematics
An observer 1.6m tall is 20√3m away from a tower. The angle of elevation from his eye to the top of the tower is 30°. The height of the tower is:
A. 21.6 m
B. 24.71 m
C. 25.2 m
D. None of these
If the cost of tiles is Rs.5 for 50 sq.m, what will be the cost of 400 sq.m:
A) Rs.25
B) Rs.35
C) Rs.40
D) Rs.44
What is the area of a sector of a circle of radius 6.5 cm if the perimeter is 29 cm:
A) 52 cm²
B) 42 cm²
C) 56 cm²
D) 59 cm²
What is the product of -2, -3 and -10:
A) -35
B) -60
C) -55
D) -65
A train covers 32 kilometers in 14.5 minutes. If it continues to travel at the same rate, which of the following is closest to the distance it will travel in 2 hours?
A) 920 kilometers
B) 524 kilometers
C) 265 kilometers
D) 220 kilometers
Find the value of x and y by solving the given equations, 2x + y = 20 and 6x – 5y = 12
A) x = 5, y = 9
B) x = 7, y = 6
C) x = 4, y = 6
D) x = 4, y = 3