If we apply, Concept of Relative speed it would become 2km/hr (when two object move same direction we simply minus their speed from greater number to smaller ) And distance between thief and police man was=100m Now need to convert unit of speed as it mentioned in km /hr so in order to convert We need to multiply 5/18 After that =100/2* 5/18 = 100*18/2*5 = 180 sec means 3minute
Relative speed between them is 2km/ h and convert to m/s it will be 5/9 m/s Distance or gap between them is 100 m so time taken to chased the thief is 100÷5/9=100×9/5= 180 sec and convert to min it will be 3 minutes Therefore option b) 3 is correct answer. am I right?
Q1, ans is 98 correct because we have to find total appearing candidates. Also there's a shortcut method, Sum of 5:2 multiply by 14, means 5+2 = 7*14 = 98...
@@rashamaydam871 sarcasm right 👍🏻... I multiplied 14 with sum of ratios because adding failed 14 more the the sum of ratios remains same (4+3= 7) so we can consider 14 is a 1 part. So total parts is 7* 14= 98. And this applies for this question only not for all ....
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Given: Speed of thief = 8 km/h Speed of policeman = 10 km/h Distance to be covered = 100 m Formulas used: Relative speed (same direction) = Speed of policeman - Speed of thief Time = Distance/Relative Speed Calculation: Time taken by policeman to catch the thief = 100 m/(10-8) km/h 100 m/2 km/h →100 m/(2 km x 5/18) (100 m/2) x 18/5 180 seconds 180/60 minutes = 3 minutes .: Time taken by policeman to catch the thief is 3minutes.
