The average (arithmetic mean ) of x and y is 40. If z=10 , what is the average of x, y and z?

১

In a cricket championship tournament, Team Dhaka has won 30 games out of 50 played. It has 45 more games to play. In order. In order to maintain an average of 80% victory rate, team Dhaka has to win how many games?

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

২

Mr. Bakhtiar works in the procurement department of a library. Under a new purchase policy, he increased the total number of books in the library by 20%. But soon afterwards, as part of the library cleaning process, 10% of the total library book stock is disposed of. What is the net change over the initial number of books in the library?

increased of 10%

increased of 30%

decreased of 8%

none of these

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

none of these

৩

The production cost of one unit of an item is Tk. 10. The item can be sold for a price of Tk. 16. The company further incurs a cost of Tk. 10,000 in the selling process. How many units of the product should be sold for the company to earn a profit of Tk. 50,000?

1667

8333

6000

10000

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

10000

৪

The ages of A and B are in the ratio of 8: 5. If the sum of their ages is 39 years, what will be the ratio of their ages after 9 years?

3 : 2

8 : 7

10 : 7

11 : 8

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

11 : 8

৫

If A/2=B/3=C/4, then A: B: C=?

2 : 3 : 4

3 : 4 : 5

4 : 3 : 2

6 : 4 : 3

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

2 : 3 : 4

৬

A man's expenditure on food is 3/5 of his expenditure on clothes; find the ratio between his expenditure on food and cloth.

2 : 5

3 : 5

2 : 3

5 : 3

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

3 : 5

৭

A man walks down the road for half an hour at an average speed of 3 miles per hour. He waits 10 minutes for a bus, which him back to his starting point at 3: 15. If the man began his walk at 2: 25 the same afternoon, what was the average speed of the bus?

3 mph

4.5 mph

6 mph

9 mph

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

9 mph

৮

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 girls in the class?

1 : 4

1 : 3

1 : 2

2 : 3

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

1 : 2

৯

When a commodity is sold for Tk. 34.80, there is a loss of 2%. What is the cost price of the commodity?

Tk. 26.10

Tk. 43

Tk. 43.20

Tk. 46.40

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

Tk. 26.10

১০

In what ratio must a grocer mix two varieties of pulses costing Tk. 15 and Tk. 20 per kg respectively so as to get a mixture worth Tk.16.50 per kg?

3:7

5:7

7:3

7:5

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

7:3

অনুসন্ধান করুন

বিস্তারিত সমাধান

The average (arithmetic mean ) of x and y is 40. If z=10 , what is the average of x, y and z?

In a cricket championship tournament, Team Dhaka has won 30 games out of 50 played. It has 45 more games to play. In order. In order to maintain an average of 80% victory rate, team Dhaka has to win how many games?

The production cost of one unit of an item is Tk. 10. The item can be sold for a price of Tk. 16. The company further incurs a cost of Tk. 10,000 in the selling process. How many units of the product should be sold for the company to earn a profit of Tk. 50,000?

The ages of A and B are in the ratio of 8: 5. If the sum of their ages is 39 years, what will be the ratio of their ages after 9 years?

If A/2=B/3=C/4, then A: B: C=?

A man's expenditure on food is 3/5 of his expenditure on clothes; find the ratio between his expenditure on food and cloth.

A man walks down the road for half an hour at an average speed of 3 miles per hour. He waits 10 minutes for a bus, which him back to his starting point at 3: 15. If the man began his walk at 2: 25 the same afternoon, what was the average speed of the bus?

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 girls in the class?

When a commodity is sold for Tk. 34.80, there is a loss of 2%. What is the cost price of the commodity?

In what ratio must a grocer mix two varieties of pulses costing Tk. 15 and Tk. 20 per kg respectively so as to get a mixture worth Tk.16.50 per kg?

কোর্স

অনুসন্ধান করুন

বিস্তারিত সমাধান

The average (arithmetic mean ) of x and y is 40. If z=10 , what is the average of x, y and z?

সম্পর্কিত বিষয় সমূহ

সম্পর্কিত অন্যান্য প্রশ্ন

In a cricket championship tournament, Team Dhaka has won 30 games out of 50 played. It has 45 more games to play. In order. In order to maintain an average of 80% victory rate, team Dhaka has to win how many games?

The production cost of one unit of an item is Tk. 10. The item can be sold for a price of Tk. 16. The company further incurs a cost of Tk. 10,000 in the selling process. How many units of the product should be sold for the company to earn a profit of Tk. 50,000?

The ages of A and B are in the ratio of 8: 5. If the sum of their ages is 39 years, what will be the ratio of their ages after 9 years?

If A/2=B/3=C/4, then A: B: C=?

A man's expenditure on food is 3/5 of his expenditure on clothes; find the ratio between his expenditure on food and cloth.

A man walks down the road for half an hour at an average speed of 3 miles per hour. He waits 10 minutes for a bus, which him back to his starting point at 3: 15. If the man began his walk at 2: 25 the same afternoon, what was the average speed of the bus?

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 girls in the class?

When a commodity is sold for Tk. 34.80, there is a loss of 2%. What is the cost price of the commodity?

In what ratio must a grocer mix two varieties of pulses costing Tk. 15 and Tk. 20 per kg respectively so as to get a mixture worth Tk.16.50 per kg?