A well penetrates to 30 m below the static water table. After 24 hours of pumping at 31.40 litres/minute, the water level in a test well at a distance of 80 m is lowered by 0.5 m and in a well 20 m away water is lowered by 1.0 m. The transmissibility of the auifer, is

• 1.185 m2/minute
• 1.285 m2/minute
• 1.385 m2/minute
• 1.485 m2/minute
• 1.585 m2/minute.