৩১২৪১
In a certain English class, 1/4 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of the number of boys to the number of girls in the class?
উত্তর
1:2
৩১২৪৩
The average daily income of Mr. A and Mr. B is Tk. 350, of Mr. B and Mr. C is Tk. 365, and of Mr. A and Mr. C is Tk. 340. What is the weekly income of Mr. A if he works 5 days in a week?
উত্তর
Tk. 1,625
৩১২৪৪
নয়ন একটি কাজ ১ ঘন্টায় করতে পারে। একই কাজ আরিফ ২ ঘন্টায় ও সুমন ৩ ঘন্টায় সম্পন্ন তরতে পারে। কাজটি ৩ জনে একত্রে সম্পন্ন করতে লাগবে-
উত্তর
১/২ ঘন্টা
৩১২৪৫
তিনটি মৌলিক সংখ্যার গুণফল ১৭২৯ এবং এর মধ্যে দুটির গুণফলের দ্বিগুণ হল ১৮২। তৃতীয় সংখ্যাটি কত?
উত্তর
7
৩১২৪৬
A group of kittens went on sale and 2/3 of them were sold for Tk. 2.30 each. If none of the 36 remaining kittens were sold, what was the total amount Tk. received for the kittens that were sold?
উত্তর
180
৩১২৪৭
How many years does it take for interest Tk. 1000 to become equal to the interest to the interest on Tk. 20 in 8 years?
উত্তর
20
৩১২৪৮
Mr. Jaman is insured completely for Tk. 1,50,000 against damages to his machinery. For any damage over Tk. 1,50,000 the insurance company will pay Tk. 1,50,000 plus only 15% of the additional damage. For a recent accident, Mr. Jaman was paid Tk. 1,56,000 by the insurance company. What was the total amount of the damage estimated?
উত্তর
Tk. 1,04,000
৩১২৪৯
The elevator in an eleven-storied office building travels at the rate of one floor per 1/4 minute, which allows time for picking up and letting down passengers. At the main floor and at the top floor the operator stops for 1 minute. How many complete (return) trips will the operator make during a 7 hours period?
উত্তর
60
৩১২৫০
To produce an old photograph, a photographer charges x dollars to make a negative 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?
উত্তর
4