There are 50 cards marked with the numbers 1 to 50. One card is drawn at random. What is the probability that number on the card is a prime number? 

(a) 
(b) 
(c) 
(d) 
There are 50 cards marked with the numbers 1 to 50. One card is drawn at random. What is the probability that number on the card is a prime number? 

(a) 
(b) 
(c) 
(d) 
Following table gives the number of trees planted by the students in a school on ‘Environment Day’. Observe the table and find mode of the trees planted by the students.


(a) 
80 
(b) 
50 
(c) 
45 
(d) 
35 
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