Directions (1-10): What should come in place of question mark (?) in the following questions?
Q11. A and B start a business with Rs. 2500 and Rs. 3500 respectively. After 4 months C joins the business with Rs. 4500. At the end of the year, C gets Rs.900 as his share of profit then find the difference between profit got by B and A ?
(a) Rs. 600
(b) Rs. 300
(c) Rs. 1200
(d) Rs. 1500
(e) Rs. 800
Q12. The letters of the word PROMISE are to be arranged so that three vowels should not come together. Find the number of arrangements.
Q13. There are four hotels in a town. If three men check into the hotels in a day then what is the probability that all of them do not check into the same hotel?
Q14. A chemist has 10 litre of a solution that is 10% nitric acid by volume. He wants to dilute the solution to 4% strength by adding water how many litre of water must be added?
Q15. Train A is 180 metre long, while another train B is 240 metre long. Train A has a speed of 30 kmph and train B’s speed is 40 kmph, if the trains move in opposite directions then in what time will Train A pass Train B completely?
(a) 21 seconds
(b) 21.6 seconds
(c) 26.1 seconds
(d) 26 seconds
(e) 16 seconds