যদি a : b = 3 : 5 এবং a : c =5 : 7 হয়, তবে b : c = ?
A. 3 : 7
B. 25 : 21
C. 21 : 25
D. 7 : 3
Bangladesh.Navyমেরিন একাডেমিসাধারণ গণিতবীজগণিতীয় রাশিবীজগণিতীয় রাশি (Topic Practice)Bangladesh.Navy - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
B.
25 : 21
Explanation:
Related Questions (Any University/Year)
- Antara has exactly 3 times as many Spanish as non-Spanish stamps in her collection. Which of the following CANNOT be the number of stamps in Antara's collection?
- যদি a + b =2 এবং ab=1 হয় , তবে a এবং b এর মান যথাক্রমে -
- The sum of twice a number and three times of 42 is 238. what is the sum of trice the number and two times of 42?
- একটি সংখ্যা ৩০১ হতে যত বড় ৩৮১ হতে তত ছোট। সংখ্যাটি কত?
- Mixture X is 40 percent peanut and 60 percent hazel nut by weight-, mixture Y is 25 percent peanut and 75 percent cashew nut. If a mixture of X and Y contains 30 percent peanut, what percent of the weight of this mixture is X?
- If x +y =6, y +z =4 and z +x =2 , then 2y -z -x?
- X CDs can be purchased for Tk.y. How many CDs can be purchased with Tk. Z
- A car rental agency charges Tk. 2,000 a day plus Tk. 10 per mile for its rental cars. what is the total cost of traveling a total of 400 miles in 4 days in a car rented form this agency ?
- A jar contains marbles of four different colors . The number of blue marbles is 3 times as many as the yellow ones. The number of red marbles is half that of the yellow ones. The number of orange marbles is equal to the number of red ones . What percent of the marbles are orange colored ?
- রহিমের আয় করিমের আয় অপেক্ষা ২৫% বেশি। করিমের আয় রহিমের আয় অপেক্ষা শতকরা কত কম?
- X CDs can be purchased for Tk.y.How many CDs can be purchased with Tk.Z
- Inx এর ক্ষেত্রে নিচের কোনটি সঠিক ?
- Mostafa had traveled 1/3 of the total distance of his trip when his car broke down. He finished the journey on foot, spending twenty times as long walking as he had spent driving. How many times faster was his driving speed than his walking speed?
- Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes or 35 small cakes per hour. The kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed. How many helpers are required?
- Computer Games Plus needs to get rid of its copies of an old computer game. If it lowers the cost of the old computer game by $5 dollars, it can increase sales of the old computer game by 10 units and still generate exactly $100 of revenue from the old game. How many units of the old computer game did Computer Games Plus sell after implementing the new selling strategy?
- 32 এর 2 ভিত্তিক লগারিদম কত?
- If the salary of an employee is reduced by 10 percent for his late attendance and then increased by 10 percent on a pardon , how much does he lose?
- ১৪৩ টাকাকে ২:৪:৫ অনুপাতে ভাগ করলে বৃহত্তম ও ক্ষুদ্রতম অংশের পার্থক্য কত টাকা হবে ?
- ৬৪ কিলোগ্রামের বালি ও পাথর টুকরার মিশ্রসে পরিমাণ ৪০% হবে?
- w,x অপেক্ষা 10% কম হলে এবং y,z d অপেক্ষা 30% কম হলে wy, xz অপেক্ষা শতকরা কত কম ?
- The ages of A and B are in the ratio 6:5 and sum their ages is 44 years. What will be the ratio of their ages after 8 years?
- If x =1+2 and y = 1- 2, find the value of (x2+y2)
- কোন সংখ্যার এক-তৃতীয়াংশ ও এক-চতুর্থাংশের পার্থক্য ২.৫?
- One night 18 percent of the female officers on a police force were on duty. If 180 officers were on duty that night and half of these were female officers, how many female officers were on the police force?
- Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes per hours,or 35 small cakes per hour. The kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed. How many helpers are required?
