Arithmatic MCQ Question and Answer
Arithmatic MCQ Question and Answer
71. In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B is—
- 29years
- 19 years
- 49 years
- 39 years
72. Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour
each alternately, the tank will be full in—
each alternately, the tank will be full in—
- 6 hours
- 6 2/3 hours
- 7 hours
- 7 ½ hours
73. The present ages of three persons are in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in
years)—
years)—
- 20, 35, 45
- 8, 20, 28
- 16, 28, 36
- 20, 36, 46