Tappu throws a ball to break Bhide's balcony glass with a speed of 20

1.	Tappu throws a ball to break Bhide's balcony glass with a speed of 20 km/h. The required speed of the ball to break the glass should be 35 km/h. Then find by how much per cent should Tappu increase the ball's speed to break the glass.1. 60%2. 75%3. 85%4. 90%
Answer» Correct Answer - Option 2 : 75% Given: Speed of Tappu's ball = 20km/h The required speed of the ball to break the glass = 35 km/h Calculations: Increase in speed = 35 – 20 = 15 Increase % = (15/20) × 100 = 75% ∴ Required increase % is 75%

Tappu throws a ball to break Bhide's balcony glass with a speed of 20 km/h. The required speed of the ball to break the glass should be 35 km/h. Then find by how much per cent should Tappu increase the ball's speed to break the glass.1. 60%2. 75%3. 85%4. 90%

Answer» Correct Answer - Option 2 : 75%

Given:

Speed of Tappu's ball = 20km/h

The required speed of the ball to break the glass = 35 km/h

Calculations:

Increase in speed = 35 – 20 = 15

Increase % = (15/20) × 100 = 75%

∴ Required increase % is 75%

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Tappu throws a ball to break Bhide's balcony glass with a speed of 20 km/h. The required speed of the ball to break the glass should be 35 km/h. Then find by how much per cent should Tappu increase the ball's speed to break the glass.1. 60%2. 75%3. 85%4. 90%

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