Directions (1-5): The table shows the time (hours) taken by two trains X and Y in a week days (Monday to Friday).
Study the data carefully and answer the questions.
Train X and Train Y travel same distance 720 km every day.
Q1. What is the average speed of train X from Monday to Friday?
Q2. Speed of train Y in all over the week days is how much approximate percent more or less than speed of train X in all over the week days.
Q3. If the speed of train Y increased by 20% on Thursday, then find the time taken by train Y to cover the same distance?
Q4. Find the ratio between the speed of train X on Tuesday and Thursday together to the speed of train Y on same days?
Q5. Find the difference between the total speed of train X and train Y on Wednesday and Monday together and speed of train X and train y on Friday?
Q6. X and Y together can do a work in12 days and Z alone can do the work in 60 days. If X can do a certain work in the same time in which Y and Z together can do it, then find y alone could do the work in how many time?
Q7. Ram can do a work in 30 days and Shyam is 25% more efficient than Ram. In how many days they complete the double of the same work starting together?
Q8. On selling 12 books at 1800 the profit is equal to the cost price of 3 books. Find the cost price of each book ?
CP of 3 books = SP of 12 books – CP of 12 books
CP of 15 books = SP of 12 books
CP of 15 books = 1800
CP of 1 book = 1800/15
= Rs 120
Q9. How many 6 digits land line numbers can be formed using the digits from 0 to 9 if repetition is allowed and 0 (zero) can also start the number?
Q10. Find the probability of getting a total score equal to a prime number on throwing two dice simultaneously.
Favorable event = [(1, 1), (1, 2), (1, 4), (1, 6), (2, 1), (2, 3), (2, 5), (3, 2), (3, 4), (4, 1), (4, 3), (5, 2), (5, 6), (6, 1), (6, 5)]
Required probability = 15/36
Directions (11– 15): What comes at the place of question marks in below series:
Q11. 9, 11, 22, 51, 107, ?
Q12. 67, 75, 59, 91, 27, ?
Q13. 12, ? , 168, 504, 1260, 2520
Q14. ?, 187 , 247, 271, 277, 277
Q15. 6, ?, 94, 168, 262, 376