প্রতি কেজি ধান ২০ ও প্রতি কেজি গম ৪০ । এক বছরে ধানের উৎপাদন কমে যায়। প্রতি দিন ধানের দাম প্রতিদিনের থেকে ১০% বাড়ে ও প্রতিদিন গমের দাম কমে প্রতিদিনে এর থেকে ৫% কমে ৷ কত দিন পড়ে ২ টা সমান হবে ও মূল্য কত হবে?

Ashifur August 8, 2023 - 08:17

Problem: প্রতি কেজি ধান ২০ ও প্রতি কেজি গম ৪০ । এক বছরে ধানের উৎপাদন কমে যায়। প্রতি দিন ধানের দাম প্রতিদিনের থেকে ১০% বাড়ে ও প্রতিদিন গমের দাম কমে প্রতিদিনে এর থেকে ৫% কমে ৷ কত দিন পড়ে ২ টা সমান হবে ও মূল্য কত হবে?

View all: KARMASHANAGS THAN BANK SENIOR ( OFFICER) | WRITTEN QUESTION (MATH) SOLVE | 2015

Correct Answer: ans: ৫ দিন পড়ে ২টা সমান হবে ও মূল্য ৩০ টাকা হবে।

Explanation:

Cost of rice increases per day by = 20 x 10% = 2 taka

Cost of wheat decreases per day by = 40 x 5% = 2 taka

মনেকরি, After x days, the price of rice and wheat will be equal.

=> 20+2x=40-(2$\times$x)

=20 + 2x = 40 – 2x

=> 4x = 20

x = 5

So after 5 days price of rice and wheat are same and at that time the amount = 20 + (2 x 5) = 30.

Write Reply...

You should read | Topics/Questions

In a flight of 600km, an aircraft was slowed down due to bad weather. its average speed for the trip was reduced by 200kmflrr and the time of flight increased by 30 minutes. Find out the duration of the flight.

A shopkeeper sells two shirts at the same price. He maker 10% profit on one and loses 10% on the other. How much in percentage does he gain or lose ?

The length of a tangent from a point A at distance 5cm from the center of the circle is 4cm. Find the radius of the circle.

বিক্রয়মূল্য ৬% বেড়ে যাওয়ায় ১০৬০ টাকায় পূর্বে যত কেজি চিনি কেনা যেত, এখন তার চেয়ে ৩ চিনি কম কেনা যায়। চিনির বর্তমান দর কেজি প্রতি কত? পূর্বে চিনির দাম কেজি প্রতি কত ছিল?

Every year Mr. Kalain saves Tk. 5,400 which is 15% of his annual income. Mr. Rahim spends Tk. 2,800 a month which is 87.5% of his monthly income. Who has more income?

When sugar price was raised by 25%, a person cut down sugar consumption in such away that his expenditure on sugar was unchanged. By what percentage the personreduced sugar consumption?

A trader had 22 pens and he sold some of them at a profit of tk. 35 per unit had some at a loss of tk. 10 per unit. If his total profit was Tk. 635, how many pens did he sell at a loss?

A, B and C start a business each investing Tk. 20,000. After 5 months A withdrew T k. 5,000, B withdrew Tk. 4,000 and C invests Tk. 6,000 more. At the end of the year, a total profit of Tk. 69,900 was recorded. Find the share of each.

A committee of 5 is to be formed from 6 male student. In how many ways can this be done so that committee contains at least one male and one female student ?

Kashem joined work two years ago. His starting Gross income was $\frac{1}{2}$ of Selim’s Gross Income at that time. Each year since then Kashem has received a raise of 5% in his annual Basic Salary, which is 70% of his Gross Income. His Allowances, which are 30% of his Gross income, have remain unchanged. Meanwhile, Selim has received a raise of 10% in his Basic Salary, which is 80% of his Gross Income. His allowances, which are 20% of his Gross Income, have remain unchanged. Currently what percentage of Selim’s gross income is Kashem’s gross income?

Articles

0

Comments

0

Rating

0

Login