If a distance of 50 m is covered in 1 minute, that 90 m

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If a distance of 50 m is covered in 1 minute, that 90 m in 2 minutes and 130 m in 3 minutes find the distance covered in 15 minutes.

1. 610 m
2. 750 m
3. 1000 m
4. 650 m

Correct Option: A

Distance covered in 2nd minute = 90 – 50 = 40 metre
Distance covered in 3rd minute = 130 – 90 = 40 metre
∴ Required distance
= 50 + 40 × 14
= 50 + 560 = 610 metre