2581: A man coming down on a lift leaves a ball from his hand. The ball will:
(a) Go up
(b) Fall down
(c) Remain stationary with respect to man
(d) Oscillate up and down
2582: The missing fraction in the series given below is :
4/9,9/90/........39/86
(a) 17/40
(b) 19/42
(c) 20/45
(d) 29/53
2583: In a survey, it was found that 80% of those surveyed owned a car while 60% of those surveyed owned a mobile phone. If 55% owned both a car and a mobile phone, what per cent of those surveyed owned a car or a mobile phone or both ?
(a) 65%
(b) 80%
(c) 85%
(d) 97.5%
2584: India, Pakistan and Bangladesh are the members of SAARC. The other members of SAARC are:
(a) Burma, Bhutan, Nepal, Maldives
(b) Sri Lanka, Bhutan, China, Afghanistan
(c) Bhutan, Nepal, Sri Lanka, Maldives
(d) Mauritius, Afghanistan, Burma, China
2585: Four different candles, which can last for 5 hours, 4 hours. 3 hours and 2 hours of burning, respectively, are lit in a room at the same instant and allowed to burn till such time that the three candles in the room get extinguished. The cost of burning each one of these candles is 75 paise per hour. The cost involved is:
(a) Rs. 2.75
(b) Rs. 3.75
(c) Rs. 9.75
(d) Rs. 12.50