চতুর্ভুজের চার কোণের অনুপাত 1ঃ2ঃ2ঃ3 হলে, বৃহত্তম কোণের পরিমাণ কত হবে?

১

Three individuals contributed Tk. 8,000.00 each toward the puchase of a computer. If they bought the computer on sale for Tk. 19,500.00 plus 10 percent sales tax, how much money should be refunded to each individual?

Tk. 650

Tk. 850

Tk. 1500

Tk. 1950

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

Tk. 850

সমাধান

Total contribution = 3 x 8000 = 24000 TK Cost of computer = 19500 + 10% of 19500 = 19500 + 1950 = 21450 TK. Excess contribution = 24000 - 21450 = 2550 TK. Refund to each = 2550/3 = 850 TK.

২

A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the largest field is greater than the area of the smaller field by what amount?

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

৩

The width of a rectangular field is 1/3 as long as its length. What is the area of the field if the length of the field is 120 yards?

480 square yards

2,400 square yards

4,800 square yards

5,000 square yards

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

4,800 square yards

সমাধান

length = 120 yardswidth = 120 * ⅓ = 40 yardsarea of rectangular fields = 120*40 = 4800 square yards

৪

An employer pays 3 workers X, Y and Z a total of Tk. 36,600.00 a week. X is paid 125% of the amount Y is paid and 80% of the amount Z is paid. How much does X make a week?

9,000

12,000

10,800

11,700

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

12,000

সমাধান

X = 125%Y X = 80%Z X = 125×Y100 X = 80×Z100 X = 5Y4 X = 4Z5 Y = 4X5 Z = 5X4 X + Y + Z = 36600 X + 4X5 + 5X4 = 36600 20X + 16X + 25X20 = 36600 X = 12000 (Ans.)

৫

If the price of apple is Tk. 80.00 a kilogram, and the price triples every 6 months, how long will it be untill the price of apple is Tk. 6480.00 a kilogram?

1 year

2 years

3 years

13 years

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

2 years

সমাধান

If the price of apple is Tk. 80.00 a kilogram, and the price triples every 6 monthsThen, every 6 months the price will be = 80 ×3= 240 After (6+6)=12 months it will be = 240×3 = 720After (12+6)=18 months it will be = 720×3= 2160After (18+6)=24 months it will be = 2160×3=6480So after 24 months or 2 years it Will be 6480 taka

৬

If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is:

decreased by 20%

decreased by 4%

Stay the same

increases by 10%

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

decreased by 4%

সমাধান

Let's assume the length of the rectangle is L and the width is W.Then the original area of the rectangle = L x WAfter the increase in length by 20%, the new length = L + 0.2L = 1.2LAfter the decrease in width by 20%, the new width = W - 0.2W = 0.8WSo, the new area of the rectangle = (1.2L) x (0.8W) = 0.96LWTherefore, the new area of the rectangle is 96% of the original area.Answer: 96% of the original area.decreased by 4%

৭

If n and p are both odd numbers , which of the following must be an even number?

np + 2

n + p

n + p +1

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

n + p

সমাধান

Addition of two odd numbers always be an even number.

৮

If a and b are positive integers and (a -b) /3.5 - 4/7 , then

b< a

b>a

b =a

b>=a

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

b< a

সমাধান

(a - b)/ 3.5 = 4/7 = 7 ( a - b) = 4×3.5 = a - b = 14/7 a - b = 2 So, a is greater than b.

৯

x = 2y +3 and y= -2 , Quantity A =x and Quantity B = -1

Quantity A is greater

Quantity B greater

The two quantities are equal

The relationship cannot be determined from the information given

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

The two quantities are equal

সমাধান

x = 2y + 3 and y = - 2 So, x = 2 ( - 2) + 3 x = - 4 + 3 x = - 1 So, Quantity A = x = - 1 and B = - 1 are equal.

১০

In a class composed of x girls and y boys what part of the class is composed of girls.

y / (x +y)

x / xy

x / ( x +y)

y/ xy

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

বিস্তারিত

উত্তর

x / ( x +y)

সমাধান

No. of girls = x and no. of boys = y So, total class = x + y Part of the class composed of girls = x/(x + y)

অনুসন্ধান করুন

বিস্তারিত সমাধান

চতুর্ভুজের চার কোণের অনুপাত 1ঃ2ঃ2ঃ3 হলে, বৃহত্তম কোণের পরিমাণ কত হবে?

Three individuals contributed Tk. 8,000.00 each toward the puchase of a computer. If they bought the computer on sale for Tk. 19,500.00 plus 10 percent sales tax, how much money should be refunded to each individual?

A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the largest field is greater than the area of the smaller field by what amount?

The width of a rectangular field is 1/3 as long as its length. What is the area of the field if the length of the field is 120 yards?

An employer pays 3 workers X, Y and Z a total of Tk. 36,600.00 a week. X is paid 125% of the amount Y is paid and 80% of the amount Z is paid. How much does X make a week?

If the price of apple is Tk. 80.00 a kilogram, and the price triples every 6 months, how long will it be untill the price of apple is Tk. 6480.00 a kilogram?

If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is:

If n and p are both odd numbers , which of the following must be an even number?

If a and b are positive integers and (a -b) /3.5 - 4/7 , then

x = 2y +3 and y= -2 , Quantity A =x and Quantity B = -1

In a class composed of x girls and y boys what part of the class is composed of girls.

কোর্স

অনুসন্ধান করুন

বিস্তারিত সমাধান

চতুর্ভুজের চার কোণের অনুপাত 1ঃ2ঃ2ঃ3 হলে, বৃহত্তম কোণের পরিমাণ কত হবে?

সম্পর্কিত বিষয় সমূহ

সম্পর্কিত অন্যান্য প্রশ্ন

Three individuals contributed Tk. 8,000.00 each toward the puchase of a computer. If they bought the computer on sale for Tk. 19,500.00 plus 10 percent sales tax, how much money should be refunded to each individual?

A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the largest field is greater than the area of the smaller field by what amount?

The width of a rectangular field is 1/3 as long as its length. What is the area of the field if the length of the field is 120 yards?

An employer pays 3 workers X, Y and Z a total of Tk. 36,600.00 a week. X is paid 125% of the amount Y is paid and 80% of the amount Z is paid. How much does X make a week?

If the price of apple is Tk. 80.00 a kilogram, and the price triples every 6 months, how long will it be untill the price of apple is Tk. 6480.00 a kilogram?

If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is:

If n and p are both odd numbers , which of the following must be an even number?

If a and b are positive integers and (a -b) /3.5 - 4/7 , then

x = 2y +3 and y= -2 , Quantity A =x and Quantity B = -1

In a class composed of x girls and y boys what part of the class is composed of girls.