Career Focus Math

A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is: 14 years 18 years 20 years 22 years

Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years? 24 27 40 Cannot be determined None of these

Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit's age. After further 8 years, how many times would he be of Ronit's age? 2 times 2  1 times 2 2  3 times 4 3 times

The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child? 4 years 8 years 10 years None of these

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there? 50 100 150 200

A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is: 1 km/hr 1.5 km/hr 2 km/hr 2.5 km/hr

Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is: 16 hours 18 hours 20 hours 24 hours

A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water? 40 minutes 1 hour 1 hr 15 min 1 hr 30 min

A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place? 2.4 km 2.5 km 3 km 3.6 km

The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is: 1.2 km 1.8 km 2.4 km 3.6 km

A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water? 4 km/hr 6 km/hr 8 km/hr Data inadequate

In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is: 3 km/hr 5 km/hr 8 km/hr 9 km/hr

A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is: 8.5 km/hr 9 km/hr 10 km/hr 12.5 km/hr

A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream. 2 hours 3 hours 4 hours 5 hours

A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train? 230 m 240 m 260 m 320 m None of these

A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the jogger? 3.6 sec 18 sec 36 sec 72 sec