SSC CHSL 2024 PYQ — Question 69

The correct answer is option 1 i.e.  $3{23\over29}$%.

Error Percentage = $|\frac{\text{ True Value} - \text{Estimated Value}}{\text{True Value}}|\times 100$

2 hours 25 minutes = 145 minutes

2 hours 30.5 minutes = 150.5 minutes

Error = |150.5 - 145| = 5.5 minutes

Required percentage = (5.5/145) × 100 = 550/145 = $3{23\over29}$%

Therefore, the error percentage is $3{23\over29}$%.