Question

what are answers for this​

Answer 1

ANSWER :- 0.05 km/hr , 0.2km/hr

$\huge\mathfrak\red{question}$

A boy starts from foot of a hill of slope 200m at 10 AM

after travelling 1 hour, he relaxes for half an hour

He reaches at the top of hill at 2 PM .After resting 1 hour

he resumes at 3 PM and reaches the base at 4 PM

$\huge\mathfrak\green{to \: find}$

• average speed for upward movement
• avergae speed for downward movement

$\huge\mathfrak\blue{Answer}$

1. UPWARD JOURNEY

• Time taken = 10 AM to 2 PM

= 4 hours

• slope = 200 m = 0.2 km

Average speed = 0.2 / 4

= 0.05 km/hr

2.DOWNWARD JOURNEY

• Time taken = 3 PM to 4 PM

= 1 hour

• slope = 200 m = 0. 2km

• average speed = 0.2 / 1

= 0.2 km/hr