At a restaurant ,the price for 3 sandwich… | Answer

Subject

Govt.Jobs

Topic

বিসিআইসি (সহকারী ব্যাবস্থাপকঃ প্রশাসন) - ১৩.০৫.২০২২

At a restaurant ,the price for 3 sandwiches and 2 cups of soup is 70.40 taka .Again ,price for 3 cups of soup and 2 sandwiches is 61.60 taka .How much does one sandwich cost (in taka )?
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ক)

17.60

খ)

13.20

গ)

9.40

ঘ)

8.80

Explanation

মনে করি , 1 টি sandwiches এর মূল্য =x টাকা এবং 1 কাপ soup " " =y টাকা প্রশ্নমতে , 3x+2y=70.40............(i) এবং2x+3y=61.60........(ii) (i)×3-(ii)×2 9x+6y=211.2 4x +6y=123.2 ________________________ 5x =88 বা, x=17.60 অতএব ,1 টি sandwiches এর মূল্য =17.60 টাকা

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At a restaurant ,the price for 3 sandwiches and 2 cups of soup is 70.40 taka .Again ,price for 3 cups of soup and 2 sandwiches is 61.60 taka .How much does one sandwich cost (in taka )?Reading

At a restaurant ,the price for 3 sandwiches and 2 cups of soup is 70.40 taka .Again ,price for 3 cups of soup and 2 sandwiches is 61.60 taka .How much does one sandwich cost (in taka )?

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At a restaurant ,the price for 3 sandwiches and 2 cups of soup is 70.40 taka .Again ,price for 3 cups of soup and 2 sandwiches is 61.60 taka .How much does one sandwich cost (in taka )?
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