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Sia ? 4 years, 7 months ago
https://mycbseguide.com/course/cbse-class-08-mathematics/1449/
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Meenal Kakadwar 4 years, 7 months ago
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Let the present ages of son and father be x years and (56 - x) years respectively.
Then, (56 - x + 4) = 3(x + 4)
⇒ 4x = 48
⇒ x = 12
So, their present ages are 12 years, 44 years respectively.
Posted by Reshmi Das 4 years, 7 months ago
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Step-by-step explanation:
Length= l,width=w
Given that l=2w
Perimeter =2(l +w)=66
l+w=33
3w=33
W=11
Posted by Reshmi Das 4 years, 7 months ago
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Sia ? 4 years, 7 months ago
Let,
The units digit = x
The tens digit = 7 - x
Orignal Number :
⇒ 10 (7 - x) + x
⇒ 70 - 10x + x
⇒ 70 - 9x
Digit of the number reversing :
⇒ 10x + (7 - x)
⇒ 10x - x + 7
⇒ 9x + 7
According to the question:
The number with reversed digits increases
The original number by 9 :
So,
⇒ (70 - 9x) + 9 = (9x + 7)
⇒ 70 + 9 - 9x = 9x + 7
⇒ 79 - 9x = 9x + 7
⇒ 79 - 7 = 9x + 9x
⇒ 72 = 18x
⇒ 18x = 72
⇒ x = 72 / 18
⇒ x = 4
The unit digit = 4
The tens digit = 7 - x
⇒ 7 - 4
⇒ 3
The tens digit = 3
Therefore,
The number is 34
Posted by Reshmi Das 4 years, 7 months ago
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Sia ? 4 years, 7 months ago
Consider the two numbers as x and y. From the given data, we write:
x−y=3
x+y=13
From the first equation, we determine a value for x.
x−y=3
Add y to both sides.
x=y+3
In the second equation, substitute x with (y+3).
x+y=13
(y+3)+y=13
Open the brackets and simplify.
y+3+y=13
2y+3=13
Subtract 3 from each side.
2y=10
Divide both sides by 2.
y=5
In the first equation, substitute y with 5.
x−y=3
x−5=3
Add 5 to each side.
x=8
Posted by Antariksh Dey 4 years, 7 months ago
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M K Dhavalikar; K A Nilakanta Sastri; Indian History Congress.
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Multiplying 1/2 by 3/3 and 1/3 by 2/2, we get , . 3/6 and 2/6.
Again multiplying the denominator and nominator of 3/6 and 2/6 by (5+1)= 6,
(2 x 6)/(6 x 6)= 12/36
(3 x 6)/(6 x 6)= 18/36
Therefore, 5 rational numbers between 1/2 and 1/3 are 13/36, 14/36, 15/36, 16/36 & 17/36.
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A computer virus is a type of computer program that, when executed, replicates itself by modifying other computer programs and inserting its own code. If this replication succeeds, the affected areas are then said to be "infected" with a computer virus. Computer viruses generally require a host program.
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Biosphere reserve :
Biosphere reserves are areas comprising terrestrial, marine and coastal ecosystems. Each reserve promotes solutions reconciling the conservation of biodiversity with its sustainable use.
Biosphere reserves are ‘Science for Sustainability support sites’ – special places for testing interdisciplinary approaches to understanding and managing changes and interactions between social and ecological systems, including conflict prevention and management of biodiversity.
Biosphere reserves are nominated by national governments and remain under the sovereign jurisdiction of the states where they are located. Their status is internationally recognized.
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Rakhi Singh 4 years, 7 months ago
Rakhi Singh 4 years, 7 months ago
Rakhi Singh 4 years, 7 months ago
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An Internet Protocol address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two main functions: host or network interface identification and location addressing.

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Sia ? 4 years, 7 months ago
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