A car must complete a180-km trips in 4 hours. If he averages 50 km an hour for the first three hours of his trip, how fast must he travel in the final hour?
A. 50
B. 45
C. 40
D. 35
E. 30
সঠিক উত্তরঃ
E.
30
Explanation:
Related Questions (Any University/Year)
- Saima needs to make a cake and some cookies. The cake requires 3/8 cup of sugar and the cookies require 3/5 cup of sugar. Saima has 15/16 cup of sugar. Does she have enough sugar, or how much more does she need?
- If p + q = 2(r + s) which of the following is the average of p, q, r and s in terms of r and s?
- An amount of money is to be distributed among P, Q and R in the ratio of 6:19:7 respectively. If R gives 200 TK of his share to Q, the ratio among P ,Q and R becomes 3:10:3 respectively. What was the total amount in taka?
- A pump can fill a trunk with water in 2 hours. Because of a leak, it took 2 and 1/3 hours to fill the tank. The leak can drain all water of the tank in.
- ডাক্তার রোগীকে প্রতি ২ ঘন্টা পর পর খাওয়ার জন্য ৬টি বড়ি দিলেন। শেষ বড়িটি রোগী কত ঘণ্টা পরে খাবেন?
- Three workers can do a job in 12 days . Two of the workers work twice as fast as the third . How long would it take one of the fastest workers to do the job alone?
- Laila invested Tk. 10,000 in a new mutual fund account exactly three years ago. The value of the account increased by 10 percent during the first year, increased by 5 percent during the second year, and decreased by 10 percent during the third year. What is the value of the account today?
- যদি একটি কাজ 9 জন লোক 12 দিনে করতে পারে, অতিরিক্ত 3 লোক করলে কাজটি কত দিনে শেষ হবে?
- Of the following, which is the closest to (6.01 x 501)/(25.05 x 19.99)?
- In a season, a football team has won 30 games out of 50 played. It has 46 more games to play. How many of these must the team win to make Its record or wins 75% of season?
- The cost of two litres of Oil and its container is taka 100 . If the cost of the container is taka 23 less than the cost of one litre of oil , what is the cost of 1 litre of oil ?
- If a, b and c are 3 consecutive integers in that order, which of the following has the lowest value?
- If a 60 ml of water contains 20% of chlorine, how much water must be added in order to create a 12.5% chlorine solution?
- In a survey of the town bogra , it was found that 65% of the people surveyed watched the news on TV, 40% read a newspaper and watched the news on TV, what percentage of the people surveyed neither watched the news on V nor read a newspaper?
- The average of runs of a cricket player of 10 innings is 32. How many run does he require in the next innings so as to increase his average by 4 runs?
- Written as a percent 5 = ?
- The price of sugar increased by 10%. What percentage of consumption of sugar is to be reduced in order to keep the expenditure on sugar at the same level?
- The least integer of set of consecutive integers is- 25. If the sum of these integers is 26, many integers are in this set?
- 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?
- ৩০ বছর পর জেকভ তার বর্তমান বয়সের চারগুণ হবে । তার বর্তমান বয়স বের কর: