a : b = 4 : 7 এবং b : c = 5 : 6 হলে a : b : c হলো --

Created: 6 years ago | Updated: 11 months ago

3 : 7 : 6

20 : 35 : 30

24 : 42 : 20

20 : 35 : 42

প্রাথমিক ও গণশিক্ষা মন্ত্রণালয়ের সহকারী উপজেলা /থানা শিক্ষা অফিসার (29-04-2016) গণিত অনুপাত - সমানুপাত (Ration-Proportion-Algebra)

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best ans

a:b  = 4:7  = (4×5):(7×5) = 20:35 b:c = 5:6 = (5×7):(6×7) = 35:42∴ a:b:c  = 20:35:42

6 years ago

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Md Azizur Rahman

Founder of Satt

অনুপাত - সমানুপাত (Ration-Proportion-Algebra)

Edit

1.
$l o g_{2} 4 + l o g_{2} 8 - l o g_{4} 16 = ?$

Created: 6 days ago | Updated: 5 days ago

Bangladesh Oil, Gas and Mineral Corporation (Petrobangla) || Assistant Manager (Electrical / Electronics/Chemical/Petroleum/Petroleum & Mining/IPE/ MME/Naval Architechture/ Telecom/ Geology/Geophysics/Chemistry/Environment/Marketing) (31-05-2024) গণিত

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2.
$I f 5^{x + 1} - 2 \times 5^{x} - 3 = 0$ What is the value of x ?

Created: 6 days ago | Updated: 5 days ago

l o g_{5} 3

\log_{3} 5

VOTE STATISTICS

OPTION 1 : 0

OPTION 2 : 1

OPTION 3 : 0

OPTION 4 : 0

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1 46

3.
A circle has a radius of 30 cm. Determine the length of the arc subtended by an angle of $60^{\circ}$ at the center of the circle.

Created: 6 days ago | Updated: 4 days ago

\frac{π}{6} c m

6 π c m

10 π c m

20 π c m

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1 77

4.
Given A = 2i - 3j + 4k and B = i + 2j - k , what is the value of the dot product A. B?

Created: 6 days ago | Updated: 5 days ago

-8

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1 57

5.
In how many ways can a committee of 4 people be chosen out of 8 people?

Created: 6 days ago | Updated: 4 days ago

110

126

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1 47

6.
The perimeter of a rectangle is 24 inches, and its length is 3 times its width. What are the length and the width of the rectangle?

Created: 6 days ago | Updated: 5 days ago

Length: 6 inches, Width: 2 inches

Length: 9 inches, Width: 3 inches

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Length: 18 inches, Width: 6 inches

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1 41

a : b = 4 : 7 এবং b : c = 5 : 6 হলে a : b : c হলো --

অনুপাত - সমানুপাত (Ration-Proportion-Algebra)

Related Question

1.
$l o g_{2} 4 + l o g_{2} 8 - l o g_{4} 16 = ?$

2.
$I f 5^{x + 1} - 2 \times 5^{x} - 3 = 0$ What is the value of x ?

3.
A circle has a radius of 30 cm. Determine the length of the arc subtended by an angle of $60^{\circ}$ at the center of the circle.

4.
Given A = 2i - 3j + 4k and B = i + 2j - k , what is the value of the dot product A. B?

5.
In how many ways can a committee of 4 people be chosen out of 8 people?

6.
The perimeter of a rectangle is 24 inches, and its length is 3 times its width. What are the length and the width of the rectangle?

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