On a 400-mile trip, car X traveled half the distance at 40 miles per hour and the other half at 50 miles per hour. What was the average speed of car X?
A. 45
B. 44 4/9
C. 40
D. 45 4/9
সঠিক উত্তরঃ
B.
44 4/9
Explanation:
Related Questions (Any University/Year)
- If Milly gives Tilly Tk. 60 , the money they have is in the ratio 2:1 however , If Tilly gives Mily TA. 10 the ratio is 1:3 How much money have Milly before they exchange any money?
- A restaurant meal cost $35.50 and there was no tax. If the tip was more than 10 percent but less than 15 percent of the cost of the meal, then the total amount paid must have been between:
- এক দোকানদার ১১০ টাকা কেজি দামের কিছু চায়ের সঙ্গে ১০০ টাকা কেজি দামের দ্বিগুণ পরিমাণ চা মিশ্রিত করে তা ১২০ টাকা কেজি দামে বিক্রি করে মোট ২,০০০ টাকা লাভ করল। দোকানদার দ্বিতীয় প্রকারে কত কেজি চা ক্রয় করেছিল?
- 0.03 X 0.0004 X 1.002 = ?
- A woman was 30 years old when her daughter was born. Her age is now 6 years more than three times her daughter’s age. How old will be the daughter in 10 years?
- The speed of a motor boat is 20 km/hr. for covering the distane of 15 km the boat took 1 hour more for upstream than downstream. Let speed of the stream be x km/hr, then speed of the motorboat in upstream will be-
- Which one is true?
- If the product of (1+2), (2+3) and (3+4) is equal to one half the sum of 20 and x , then x=?
- The average age of a man and his son is 20. After 10 years, their age will be in the ratio 2:1. What was the age of the man and his son 5 years ago respectively?
- The Value Added Tax of retail sales is 5% If a customer pays BDT 150 VAT. then what is the value of his / her total shopping bill ?
- On glancing through your morning newspaper you notice that four pages are missing. One of the missing pages is page 8. The back page of the newspaper is 28. What are the other three missing pages?
- একজন লোক ৪ ফিট লাফ দিতে পারে। সে একটি নৌকা থেকে তীরের উদ্দেশ্যে লাফ দিল। তখন নৌকাটি তীর থেকে ৩ ফিট দূরে ছিল। সে কোথায় পৌঁছাবে?
- Today Jamal is twice as old as Sanwar and Sanwar is 4 years younger than Faruk. If all of them are alive four years from today, which of the following must be true? I. Jamal is twice as old as Sanwar II. Sanwar is 4 years younger than Faruk III. Jamal is older than Faruk
- Two people can make 2 bicycles in 2 hours. How many people are needed to make 12 bicycles in 6 hours?
- An electric pole 36 meters high casts a shadow of 24 meters at a particular time of a day. Find the height of a tower if it casts a shadow of 48 meters under similar weather conditions
- A company rents parking spaces at the rate of TK. 100 per week or TK. 300 per month. How much does a person save in a year (in tk) by renting by month rather than by week?
- Diana bought a stereo for $530, which was the retail price plus a 6 percent sales tax. How much money could she have saved if she had bought the stereo at the same retail price in a neighboring state where she would have paid a sales tax of 5 percent?
- ব্যাংকে বিদ্যুৎ বিল দেওয়ার জন্য ৪০ জন লোকের একটি লাইন আছে যেখানে শুরু থেকে পঞ্চম স্থানে শাহীন এবং পিছন থেকে অষ্টম স্থানে জাহিদ দাঁড়িয়ে আছে। লাইনে আর কেউ না আসলে শাহীন ও জাহিদের মাঝে কতজন দাঁড়িয়ে আছে?
- A man spent exactly $2.50 on 3¢, 6¢ and 10¢ stamps. If he bought 10 3¢ stamps and twice as many 6¢ stamps as 10¢ times, how many 10¢ stamps did he buy?
- The average weight of 3 men is 53 kg. None of them weighs less than 51 kg. What is tha maximum possible weight (in kg of a person in that group?