In this task, you need to provide the correct option for a given problem from the provided options.

Q: Problem: in what ratio must a grocer mix two varieties of pulses costing rs . 15 and rs . 20 per kg respectively so as to get a mixture worth rs . 16.50 per kg ? 
Options: a ) 3 : 7 , b ) 5 : 7 , c ) 7 : 3 , d ) 7 : 5 , e ) none

A: c
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Q: Problem: 18 balls are numbered 1 to 18 . a ball is drawn and then another ball is drawn without replacement . what is the probability that both balls have even numbers ? 
Options: a ) 2 / 9 , b ) 4 / 17 , c ) 6 / 29 , d ) 8 / 35 , e ) 10 / 43

A: b
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Q: Problem: how many multiples of 5 are there between 1 and 100 ( both are inclusive ) ? 
Options: a ) 1.2 , b ) 20.8 , c ) 2.3 , d ) 6.7 , e ) 8.2

A:
b
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