In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Q: Problem: a bowl of fruit contains 10 apples and 23 oranges . how many oranges must be removed so that 50 % of the pieces of fruit in the bowl will be apples ? 
Options: a ) 3 , b ) 13 , c ) 14 , d ) 17 , e ) 20

A: b
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Q: Problem: what annual installment will discharge a debt of rs . 1428 due in 3 years at 12 % simple interest ? 
Options: a ) 315 , b ) 345 , c ) 425 , d ) 335 , e ) none of them

A: c
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Q: Problem: find the amount on rs . 9000 in 2 years , the rate of interest being 4 % per first year and 5 % for the second year ? 
Options: a ) 5568 , b ) 9828 , c ) 5460 , d ) 5635 , e ) 6734

A:
b
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