PDF chapter test TRY NOW

Find the next three numbers in the following number patterns.
 
(i) 50, 51, 53, 56, 60, ....
 
Answer:
 
The next three numbers are .
 
(ii) 77, 69, 61, 53, ....
 
Answer:
 
The next three numbers are .
 
(iii) 10, 20, 40, 80, .... 
 
Answer:
 
The next three numbers are .
 
(iv) \frac{21}{333}, \frac{321}{444}, \frac{4321}{5555}, ...
 
Answer:
 
The next three numbers are