Q2. If a boat can travel 25 km downstream in 2 hours 30 minutes and the boat takes 5 hours to cover the same distance in upstream. Find the speed of the stream?
(a) 4 kmph
(b) 2 kmph
(c) 3 kmph
(d) 2.5 kmph
(e) 3.5 kmph
Q3. A is 25% more efficient than B and he completes a task in 36 days. If C alone complete the same task in 30 days, then find all three (A, B & C) together can complete the same task in how many days?
(a) 10 days
(b) 15 days
(c) 18 days
(d) 12 days
(e) 16 days
Q4. A train can cross a platform of length 450 m in 15 sec while a tree in 3.75 sec. In what time the train can cross a platform of length150 m ?
(a) 7.5 sec
(b) 9 sec
(c) 6 sec
(d) 10 sec
(e) 12 sec
Q5. How many Four-letter words containing at least one vowel and one consonant can be formed using the letters of the word JUKED so that no word is repeated in the word formed?
(a) 5
(b) 120
(c) 60
(d) 24
(e) 90
Solutions
. . .