In a 500m race, the ratio of speeds of two contestants A and B is 3: 4. A has a start of 140m. Then A wins by-
A. 60m
B. 40m
C. 20m
D. 10m
সমন্বিত ব্যাংকমানসিক দক্ষতা(IQ)গাণিতিক সমস্যাIQ-4 (Topic Practice)সমন্বিত ব্যাংক - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
C.
20m
Explanation:
Related Questions (Any University/Year)
- 40% of students in a class are smart. The rest are stupid. Half the students play sports and half don't. If 20% of the students are smart and play sports, what percent of the students are stupid and don't play sports?
- ক গাড়ি চালায় ঘন্টায় ৪০ মাইল বেগে । খ গাড়ী চালায় ৩০ মাইল বেগে। তারা দুজনে একসাথে যাত্রা শুরু করে ৪৫০ মাইল দুরের গন্তব্যে যাওয়ার উদ্দেশ্য । খ ক এর কতক্ষন পর গন্তব্যে পৌছাবে?
- একটি ক্লাস ২৪ জন ছাত্রের গড় ওজন ৩৬ কেজি।এর সাথে ১ জন শিক্ষকের ওজন যোগ করা হলে গড় ওজন ১ কেজি বৃদ্ধি পায়।শিক্ষকের ওজন কত?
- Last year 7000 students took the admission test were the ratio of girls to boys was 6:4.Only 2% of the boys met the cut-off marks. The number of such boys was:
- The difference between the sum of two Numbers and difference of the two numbers is 6. Find the larger of the two numbers if their product is 15.
- (3 × 104)+(2 × 102)+(4 × 10)=
- If 12 men can build a wall 180 m long in 54 days ,how many days it will take to build a similar wall 160 m long ,if 16 men working on it
- An engineer designed a ball so that when it was dropped, it rose with each bounce exactly one-half as high as it had fallen. The engineer dropped the ball from a 16-meter platform and caught it after it had traveled 46.5 meters. How many times did the ball bounce?
- if one half of female students enjoy watching movies and one-third of male students do not like to watch movies, what frictional part of the student body enjoys watching movies?
- In a class of 78 students 41 are taking French, 22 are taking German. One of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?
- An investor has a total capital of TA. 13,00,000 He invested a part of it in 3 percent annual interest and the reminder at 4 percent annual interest rate. If his annual interest amount was Tk. 44.00 how much did he invest in each?
- If s shirts can be purchased for d dollars, how many shirt can be purchased for t dollars?
- A man and his wife have seven sons, and everyone of the sons has a sister. How many are there in the family?
- A certain integer n when divided by 5 yields a remainder of 4. Which of these cannot be an integer?
- If radius of Earth is 4 times that of Moon, then how many times the surface area of the Moon is that of the Earth?
- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:
- The daily rate of a hotel room that accommodates 4 people is Taka 3900 for one person and Taka x for each additional person. If 3 people take the room for one day and each pays Taka 2100 for the room, what is the value of x?
- যদি '+' মানে 'x','-' মানে '+', 'x' মানে '÷' এবং '÷' মানে '-' হয়, তাহলে মান নির্ণয় করুন; \(6-9+8\times3\div20=......\)
- It takes 27 seconds and 17 seconds for two trains to cross a stationary man on the platform in reverse. If two trains take 23 seconds to cross each other, what is the speed ratio?
- Farhana earns Tk 5 00 for every hour she works in a book store. Last week she worked for.v hours. She purchased y kg of rice. Price of per kg rice is Tk. 12.00. She saved the remaining amount. Which expression below shows her savings?
- ঢাকা থেকে চট্টগ্রামের দূরত্ব ২৪০ কি. মি.। একটি বাস ঘণ্টায় ৬০ কি. মি. গতিতে গিয়ে ঘণ্টায় ৪০ কি. মি. গতিতে ফিরে এল। বাসটির গড় গতিবেগ কত?
- কয়েকজন বন্ধু পিকনিকে যাওয়ার সিদ্ধান্ত নিয়েছিল এবং খাওয়ার জন্য ৯৬০ টাকা খরচ করার পরিকল্পনা করেছিল। তাদের মধ্যে চারজন না যাওয়াতে। বাকিদের প্রত্যেককে অতিরিক্ত ৪০ টাকা করে চাঁদা দিতে হয়েছে। পিকনিকে যারা অংশ নিয়েছিল তাদের সংখ্যা ছিল-
- কোনো বৃত্তের ব্যাসার্ধ যদি ২০% কমে, তবে উক্ত বৃত্তের ক্ষেত্রফল কত % কমবে ----
- A student multiplied a number by 3/5 instead of 5/3 , What is the percentage error in the calculation?
- The sum of the weights of P and Q is more than that of R and S taken together.The wight of P is half as much as the sum of the weights of Q and S. The sum of the weights of P and R is the same as the wight of Q and S taken together. Which of the following statements must be incorrect?
- There are four toys and they are of the same price. They worth $4.80. If the price for one is decreased by the fourth of the sum of other three toys, and two items of original price are added, then how much will six of them worth?
- চারটি মেশিন একই গতিতে একসাথে কাজ করে ৬ দিনে - x টি কলম উৎপাদন করতে পারে। ঐ একই গতিতে ৪ দিনে ৩x টি কলম উৎপাদন করতে কতটি মেশিনের কাজ করতে হবে?
- If y% of x is 29. Then x =?
- Harun is three times as old as Tamim. In eight years, he will be twice as old as Tamim. How old was Harun 3 years ago?
- কোন সংখ্যাটি প্রশ্নবোধক স্থান দুটিতে বসবে?৯/?=?/৮১
- The salary of Mr. Amitabh is 33.33% more than that of Mr. Asif, and the salary of Mr. Asif is 25% less than that of Mr. Anik. If the salary of Mr. Anik is Tk. 20,000, what is the salary of Mr. Amitabh?
- What is the value of 'x'? I. \(7^{1/x} + 24^{1/x} = 25^{1/x}\). II. x is a non-negative integer
- Which one of the following is greater than 2/37
- ৮৮০ এর তিন চতুর্থাংশের এক দশামাংসের অর্ধেক কত?
- A certain recipe calls for 3kgs of sugar for every 6 kgs of flour. If 60kgs of this sweet has to be prepared, how much sugar is required?
- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:
- যদি x+y=৫ এবং x-y=৫ হয়, তাহলে xy এর মান কত?
- A train left Dhaka for Chittagong at 62 km per hour and at the same time another train left Chittagong for Dhaka at 48 km per hour on the same route. How far apart were the two trains one hour before they met?
- The total age of father and son at present is 74 years. 10 years ago the ratio of their ages was 7:2. What will be the ratio of their ages after 10 years?
- You buy equal number of two types of chocolate at the rate of TK 1/9 and TK 1/11 respectively. if you now sell them at the rate of TK 1/10 , what will be your profit / loss ?
