Ques:- A man misses a bus by 40 minutes if he travels at 30 kmph. If he travels at 40 kmph, then also he misses the bus by 10 minutes. What is the minimum speed required to catch the bus on time?
Recent Answer : Added by DK BOSS On 2021-07-15 08:55:21:
the answer is 45 km/h
Define x:
Let the total distance be x.
Find the time needed in terms of x for speed at 30 km/h:
Find the time needed in term of x for 40 km./h:
Find the difference in time:
Solve x:
Find the total time needed to for the whole journey:
Given that he was 40 mins late:
Find the minimum speed needed:
Answer: The minimum speed is 45 km/h
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Recent Answer : Added by Dolly chawla On 2021-10-19 16:10:29:
V is sitting opposite to s
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Recent Answer : Added by DK BOSS On 2021-07-30 16:27:08:
I would say everyone has blind spots, and i would too. And that is why I believe in teamwork because when you are a team, you can point out other people’s blind spots and they will do the same for you.
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0.255555…..
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No bat is ball. No ball is wicket.
Conclusions :
I. No bat is wicket.
II. All wickets are bats.
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Recent Answer : Added by Admin On 2020-05-17 11:59:15:
If n = no. of revolutions for back wheel
9n = 7n + 10*7
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A. Japan
B. Italy
C. USA
D. France
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France — D
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Recent Answer : Added by Admin On 2020-05-17 12:03:14:
39 hrs 15 mins..
note:
he will not be having .45 mins for his lunch on saturday..
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A. 10,999
B. 109,999
C. 11,110
D. 111,110
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Smallest number of 5 digits=10, 000
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B. 25
C. 31
D. 39
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125
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Ques:- A man purchased 15 pens, 12 books, 10 pencils and 5 erasers. The cost of each pen is Rs.36, each book is Rs.45, each pencil is Rs.8, and the cost of each eraser is Rs.40 less than the combined costs of pen and pencil. Find the total amount spent?
Recent Answer : Added by Admin On 2022-09-29 18:50:44:
Solution:
As given, we have,
The cost of one pen = 36 Rs.
So, the cost of 15 pens = 36 × 15 = 540 Rs.
The cost of one book = 45 Rs.
So, the cost of 12 books = 45 × 12 = 540 Rs.
The cost of one pencil = 8 Rs.
So, the cost of 10 pencils = 8 × 10 = 80 Rs.
Now,
the cost of each eraser is 40 Rs. less than the combined costs of pen and pencil.
So,
Combined costs of pen and pencil = 36 + 8 = 44 Rs.
the answer is 45 km/h
Define x:
Let the total distance be x.
Find the time needed in terms of x for speed at 30 km/h:
Find the time needed in term of x for 40 km./h:
Find the difference in time:
Solve x:
Find the total time needed to for the whole journey:
Given that he was 40 mins late:
Find the minimum speed needed:
Answer: The minimum speed is 45 km/h