Self
Maths Puzzle
Numerical Ability
Probability
There r 2 balls in a box, whose colours r nt known except that both may b red or both white or one red and one white,, one more white ball of same size added to the lot,, nw one ball is drawn at random frm the box, then the probability that it is white
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Self Other Question
The question below contains a paragraph followed by alternative summaries. Choose the option that best captures the essence of the paragraph.
Although the first SMS was sent by an engineer, from his computer to a mobile device on Vodafone's UK network, it was only in 1994 that Nokia launched a mobile phone that let people easily write messages. What Nokia made popular is today proving to be its Achilles Heel as a new generation of smartphones coupled with a proliferation of applications like BlackBerry Messenger (BBM) and Whats App relegate text messaging to just another service.
OPTIONS
1) What began as a computer to phone text messages became popular as SMS with the launch of phones and smartphones that have relegated it to just another service.
2) SMS which began in 1994 became popular with Nokia phones but have since been taken over by smartphones and various other applications.
3) SMS became popular after Nokia launched a mobile phone capable of writing text messages in 1994; however, today’s smartphones and several applications have made SMS redundant.
4) SMS became popular after Nokia launched mobile phones capable of writing messages in 1994 and later by the proliferation of smartphones and messaging applications.
If s1= {1,2,3,4,.....,23} & s2={207,208,209,210,.....,691}, how many elements of the set s2 are divisible by at least four distinct prime numbers that are elements of the set s1?
1.9
2.8
3.11
4.12