If a work can be completed by 96 boys or 36 men in 20 days, the number of days required to complete the work by 8 boys and 12 men is

If a work can be completed by 96 boys or 36 men in 20 days, the number of days required to complete the work by 8 boys and 12 men is
1). 32 days
2). 48 days
3). 36 days
4). 42 days

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