A train travels from point A to B at a speed of 100 Km/hour. How long it will take to travel 25 kilometers in hours.
(A) 0.3
(B) 0.25
(C) 0.5
(D) 0.2
Math
The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56 Find their present ages in years.
A. 8, 20, 28
B. 16, 28, 36
C. 20, 35, 45
D. None of these
See solution:
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
A. 3.6 km/hr.
B. 7.2 km/hr.
C. 8.4 km/hr.
D. 10 km/hr.
See Solution :
A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour? Read More »
Father is aged three times more than his son Ali’s. After 8 years, he would be two and a half times of Ali’s age. After further 8 years, how many times would he be of Ali’s age?
A. 2 times
B. 2.5 times
C. 3.5 times
D. 3 times
See Solution
The number of elements in power set {1.2.3} is:
(A) 5
(B) 7
(C) 6
(D) 8 ✔
The number of elements in power set {1.2.3} is: Read More »