15
45
75
100
Source: প্রাথমিক বিদ্যালয় সহকারী শিক্ষক (মুক্তিযোদ্ধা কোটা)-2010-(বসন্ত-03) (13-08-2010)
Answer: 75
Explanation:
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খোকনের মাসিক আয়ের ও ব্যয়ের অনুপাত ২০ : ১৫ হলে, তার মাসিক সঞ্চয় তার আয়ের শতকরা কত অংশ?
The sum of three consecutive even numbers is 42 and the sum of three consecutive odd numbers is 51. Find the ratio of the lowest even and odd numbers.
Salaries of A, B and C are in the ratio 2:4:6. Salary of Band C together is Tk. 12,000 By what percent is salary of C more than that of A?
In what ratio must a grocer mix two varieties of tea worth Tk.60 per kg and Tk.80 per kg that by selling the mixture at Tk.68.20per kg he may gain 10%?
In a school, 10% of the boys are some in number as 1/4th of the girls. What is the ratio of boys to girls in that school ?
5 years ago the ration of father's age to son's age was 5:1 and 2 years later father's age will be 3 times his sons's age. What is ration of their present age?
In a sugar -water solution , the ratio of water to sugar is 8: 3 . If you add 2 kgs of sugar, the ratio becomes 2 :1 what was the amount of sugar in the original solution ?
A boat runs at 22 km per hour along the stream and 10 km per hour against the stream .Find the ratio of the speed of the boat in still water to that of the speed of the stream .
In a class , the ratio of the number of boys to girls is 5 : 3 . What percent of the students of the class are girls ?
পিতা ও পুত্রের বয়সের গড় ৩০ বছর। ৬ বছর পরে তাদের বয়সের অনুপাত ৫: ১ হলে, পুত্রের বর্তমান বয়স কত বছর?
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যুদ্ধ, চুক্তি ও সম্মেলন
পুরুষ
Affirmative and Negative Agreement
মহাদেশ ও দেশ পরিচিতি
পরিভাষা
পরিমিতি (Mensuration)
Sentence
বাংলা সাহিত্যঃ প্রাচীন ও মধ্য যুগ
Appropriate Preposition
সাধু ও চলিত রীতি
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