A man travels half length of a straight road with a constant speed of 20 ${m} / {sec}$, and he travels the second half length of the road with a constant speed of $60 {m} / {sec}$, then calculate its average speed.

## 1 Answer

0 Votes

0 Votes

**ANSWER :** $30 {~m} / {sec}$.

**SOLUTION —**

Let the total distance travelled $={L}$

Hence, total time taken $=\frac{L / 2}{20}+\frac{L / 2}{60}$

$\therefore \quad \text { Average Speed } =\frac{\text { Total distance travelled }}{\text { Total time taken }}$

$=\frac{L}{\frac{L / 2}{20}+\frac{L / 2}{60}}=\frac{40 \times 120}{160}=30 {m} / {sec}$

### 0 Comments

## RELATED DOUBTS

1 Answer
305 Views

1 Vote

1 Vote

1 Answer
110 Views

0 Votes

0 Votes

1 Answer
152 Views

0 Votes

0 Votes

1 Answer
423 Views

3 Votes

3 Votes

1 Answer
545 Views

2 Votes

2 Votes

1 Answer
167 Views

0 Votes

0 Votes

1 Answer
211 Views

0 Votes

0 Votes

1 Answer
43 Views

0 Votes

0 Votes

1 Answer
6 Views

0 Votes

0 Votes

0 Answers
34 Views

0 Votes

0 Votes

1 Answer
7 Views

0 Votes

0 Votes

1 Answer
15 Views

0 Votes

0 Votes

1 Answer
13 Views

0 Votes

0 Votes

1 Answer
96 Views

0 Votes

0 Votes

0 Answers
52 Views

0 Votes

0 Votes

1 Answer
8 Views

0 Votes

0 Votes

1 Answer
14 Views

0 Votes

0 Votes

1 Answer
12 Views

0 Votes

0 Votes

1 Answer
184 Views

0 Votes

0 Votes

1 Answer
235 Views

0 Votes

0 Votes

1 Answer
42 Views

0 Votes

0 Votes

0 Answers
44 Views

0 Votes

0 Votes

1 Answer
12 Views

0 Votes

0 Votes

1 Answer
12 Views

0 Votes

0 Votes

1 Answer
14 Views

0 Votes

0 Votes

1 Answer
245 Views

0 Votes

0 Votes

1 Answer
65 Views

0 Votes

0 Votes

1 Answer
287 Views

0 Votes

0 Votes

1 Answer
371 Views

3 Votes

3 Votes

1 Answer
14 Views

0 Votes

0 Votes

1 Answer
64 Views

0 Votes

0 Votes

1 Answer
47 Views

0 Votes

0 Votes

1 Answer
72 Views

0 Votes

0 Votes

1 Answer
117 Views

0 Votes

0 Votes

1 Answer
11 Views

0 Votes

0 Votes

Peddia is an Online Question and Answer Website, That Helps You To Prepare India's All States Boards & Competitive Exams Like IIT-JEE, NEET, AIIMS, AIPMT, SSC, BANKING, BSEB, UP Board, RBSE, HPBOSE, MPBSE, CBSE & Other General Exams.

If You Have Any Query/Suggestion Regarding This Website or Post, Please Contact Us On : [email protected]

If You Have Any Query/Suggestion Regarding This Website or Post, Please Contact Us On : [email protected]

## CATEGORIES

- ALL CATEGORIES
- GENERAL KNOWLEDGE (4.0k)
- CURRENT AFFAIRS (1.0k)
- HINDI (2.3k)
- SCIENCE (9.8k)
- SOCIAL SCIENCE (10.5k)
- MATHEMATICS (1.7k)
- TECHNOLOGY (2.4k)
- HINDI MEANING (235)
- ABBREVIATION (140)
- ENGLISH (449)
- DEFINITION (77)
- COUNTRY (184)
- COMPANY (26)
- EDUCATION (9.1k)
- ENTERTAINMENT (1.6k)
- ART AND CULTURE (209)
- SPORTS (27)
- OTHERS (409)