Home/ Questions/Q 344845
Next
In Process
Aastha Ramakrishnan
Asked: 2022-10-30T17:08:21+05:30 In:

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%

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%
Wbjee
Leave an answer

Leave an answer

Browse

1 Answer

  1. 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%

    • 0