Ashifur August 8, 2023 - 14:43
Problem: ক ও খ এর মাসিক আয়ের গড় ৩০০ টাকা, থ ও গ এর মাসিক আয়ের গড় ৩৫০ টাকা এবং ক ও গ এর মাসিক আয়ের গড় ৩২৫ টাকা । ক এর মাসিক আয় কত?

View all: KARMASANGSTAN BANK | OFFICER | WRITTEN QUESTION(MATH) SOLVE | 1999

Correct Answer: ২৭৫ টাকা

Explanation:

ক ও খ এর মাসিক আয়ের গড় = ৩০০ টাকা

আয়ের সমষ্টি = (৩০০ x ২) =৬০০ টাকা ……………..(i)

আবার, খ ও গ এর মাসিক আয়ের গড় ৩৫০ টাকা

আয়ের সমষ্টি = (৩৫০ x ২) = ৭০০ টাকা …………… (ii)

আবার, ক ও গ এর মাসিক আয়ের গড় = ৩২৫ টাকা

আয়ের সমষ্টি =(৩২৫x ২) = ৬৫০ টাকা ……………. (iii)

(i)+(ii)+(iii)  সমীকরণ যোগ করে পাই

২ক + খ + গ এদের মোট মাসিক আয় = (৬০০ + ৬৫০) টাকা = ১২৫০ টাকা ……………. (iv)

(iv-ii) করে পাই

২ক এর মাসিক আয় = (১২৫০ – ৭০০) টাকা= ৫৫০ টাকা

ক এর মাসিক আয় = (৫৫০ ÷ ২) টাকা =২৭৫ টাকা

Write Reply...
You should read | Topics/Questions
A  salesman is paid monthaly salary of TK.15,000 plus 12.5 percent commission on all his sales. What should be his total annual sales in take so that  his total annual earnig from salary and commission is TK.2,65,000?
A and B start a business with investments of Tk. 5000 and Tk. 4500 respectively. After 4 months, A takes out half of his capital. After two more month, B takes out one third of his capital while C joins them with a capital of Tk. 7000. At the end of a year, they earn a profit of Tk. 5080. Find the share of each member in the profit.
উৎপাদকে বিশ্লেষন কর: p$^{2}$+mp-(3m-2)(4m-2).
A trader bought a shirt and a trouser at Tk. 1000. If the trouser was sold as 20% profit and the shirt at 15% loss then the trader makes an overall profit of 6% on his investment, Calculate the price of the trouser and shirt.
In a country, 60% of the male citizen and 70% of the female citizen are eligible to vote. 70% of male citizens eligible to vote voted, and 60% of the female citizens eligible to vote voted. What fraction of the citizens voted during the election?
The ratio of gold and silver in an ornament weighing 42 gm is 4 : 3. How much gold will need to be added for the ratio of gold and silver to be 5 : 3?
A survey in a class shows that 15 of the pupils play cricket, 11 play football and 6 play \both cricket and football. How many pupils are there in the class, if everyone plays at  least one of these games?
X sells an item to Y at a profit of 28% and Y sells the same item to Z at a loss of 25% on his cost. If Y had sold the item to Z at Tk. 2 less than what it costs to X, what is the cost of the item to X in Taka?
ক,খ ও গ এর বয়সের গড় ২৫ বছর এবং ক, খ, গ ও ঘ এর বয়সের গড় ২৭ বছর । তাহলে ঘ এর বয়স কত?
Working alone, printers X, Y, and Z can do a certain printing job, consisting of a large number of pages, in 12, 15 and 18 hours, respectively. What is the ratio of the time it takes printer X do the job, working alone at its rate, to the time it takes printers Y and Z to do the job, working together at their individual rates?
User Avatar

Articles

0

Comments

0

Rating

0

Login