Mathematics · Arithmetic Progression
Water is filled in a tank using a pipe such that after every 1 minute, the water level rises by 2 cm. Keerthi started measuring the height at 9:45 am. At 9:47 am, the height of the water was 23 cm. What was the height of the water level at 9:40 am?
- 19 cm✓
- 210 cm
- 311 cm
- 416 cm
Correct answer
9 cm
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