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If a/3=b/4=c/7,then a+b+c/c is equal to what?

Answers:

Ans. Given : {tex}{a\over 3}={b\over 4}={c\over 7}{/tex}
So,
{tex}=> {a\over 3} ={c\over 7}{/tex}
{tex}=> {a\over c} ={3\over 7}{/tex} ..... (1)Also,
{tex}=> {b\over 4}={c\over 7}{/tex}=> {tex}{b\over c}={4\over 7}{/tex}
Now, {tex}{a+b+c\over c} = {a\over c}+{b\over c}+{c\over c}{/tex}
=> {tex} {a\over c}+{b\over c}+ 1{/tex}
From (1) and (2){tex}=> {3\over 7 }+{4\over 7} + 1 = {3+4+7\over 7} {/tex}
=> {tex}{14\over 7 } = 2{/tex}
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Q.Write the smallest didgit and the greatest didgit in the blank space for each of the following numbers so that the number formed is divible by 3.
a) _6724
b) 4765_2
Q.Write a digit in the blank space for each of the following numbers so that the number formed is divisible by 11.
a) 92_382
b) 8_9484

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1. (a) Divisibility rule of 3: A number is divisible by 3 if sum of all the digits of the number is divisible by 3.
Here, _ + 6 + 7 + 2 + 4 = _ + 19
Therefore, the smallest digit is 2 so that the total will be 2 + 19 = 21, which is divisible by 3. So now, 26724 is divisible by 3.
Also, the greatest digit is 8 so that the total will be 8 + 19 = 27, which is divisible by 3, so now 86724 is divisible by 3.
(b) Divisibility rule of 3: A number is divisible by 3 if sum of all the digits of the number is divisible by 3.
Here 4 + 7 + 6 + 5 + _ + 2 = _ + 24
Therefore, the smallest digit is 0 so that the total will be 0 + 24 = 24, which is divisible by 3. So now, 476502 is divisible by 3.
Also, the greatest digit is 9 so that the total will be 9 + 24 = 33, which is divisible by 3, so now 476592 is divisible by 3.
2. (a) Divisibility rule of 11: A number is divisible by 11 if the difference of the sums of digits of even places and that of odd places is either 0 or divisible by 11.
Here, Sum of even places = 8 + _ + 9 = 17 + _ and Sum fo odd places = 2 + 3 + 2 = 7
Therefore, the required digit is 1, so that the difference will be 18  7 = 11 and the number 921382 is divisible by 11
(b) Divisibility rule of 11: A number is divisible by 11 if the difference of the sums of digits of even places and that of odd places is either 0 or divisible by 11.
Here, Sum of even places = 8 + 9 + 8 = 25 and Sum fo odd places = 4 + 4 + _ = 8 + _
Therefore, the required digit is 6, so that the difference will be 25  14= 11 and the number 869484 is divisible by 11.
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what is mean by food?

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Ans. Food is any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.
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medicine is packed in boxes each weighing 4g500g how many such boxes can be loaded in a van which cannot carry beyond 800kg ?

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Weight of medicine in each box = 4kg500g
= 4000+500 =4500g
Total weight the van can hold = 800kg
=80,0000 g
Number of boxes = 80,0000/4500 =8000/45
= 177 boxes
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how are animals grouped on the basis of food

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On the basis of food habit animals are classified as
a. Herbivores  plant eaters.
b. Carnivores  flesh eaater.
c. Ominivores  both plant and meat eater.
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Name any five plants and the parts that we eat

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 Apple  Fruit
 Potato  Stem
 Carrot  Root
 Spinach  Leaf
 Wheat  Seed
 Cauliflower  Flower
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Why do we study history?

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we study history to get knowlege
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How did the household help in his second attempt?

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How does the grid system on a map help us to locate places

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Many maps include a grid pattern, or a series of crossing lines that create squares or rectangles. The grid helps people locate places on the map. On smallscale maps, the grid is often made up of latitude and longitude lines. Latitude lines run eastwest around the globe, parallel to the Equator, an imaginary line that circles the middle of the Earth. Longitude lines run northsouth, from pole to pole. Latitude and longitude lines are numbered. The intersection of latitude and longitude lines, called coordinates, identify the exact location of a place.
On maps showing greater detail, the grid is often given numbers and letters. The boxes made by the grid may be called A, B, C, and so on across the top of the map and 1, 2, 3, and so on across the left side. In the map’s index, a park’s location might be given as B4. The user finds the park by looking in the box where column B and row 4 cross.Thanks (0)
320.785

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Ans. 32 0.785 = 32.785
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An equality of 2 ratios is called=

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Proportion
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What is an array?

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An array is a systematic arrangement of similar objects , usually in rows and columns...
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A set of data in which observations are arranged in ascending or desecending order is called an array.
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Set of values is called as an array
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QuestionFind the Number by adding 100/3% ofb1/3 of the predecessor of smallest ,5 digit number to the successor of the number formed by the digits of first four composite on mbet.

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How a snake moves?

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Movement in snake is called as serpentine movements in which snake makes S shaped curve on both side and gripping anchoring the body parts.
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Explain circulatory system

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Ans. The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic).
The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.
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What are prop roots?

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Ans. An aerial root that arises from a stem or trunk, penetrates the soil, and helps support the plant, as in mangroves. Also called stilt root.
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What are the types of joint??

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There are 6 types of synovial joints. ( Freely movable joints)
 Hinge Joint (e.g Joints in Fingers and toes)
 Ball & Socket joint (Hip and shoulder joints)
 Pivot joint (Joint between atlas and axis  neck)
 Gliding Joint (wrist joint)
 Saddle joint (Thumb joint)
 Planar joint (Ankle joint)
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ravi earns rupees 13300 per month.he saves rupees 1224.find the ratio of:
<i>money he earns and saves</i>
<i>money he earns and his expenditure [money he spend]</i>
<i>his expenditure and money he saves</i>

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{tex}(iii)3019:308{/tex}
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(ii){tex}3325:308{/tex}
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{tex}(i)3325:3019{/tex}
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Money earned by Ravi = Rs. 13,300
Money saved by Ravi = Rs. 1224
Expenditure of Ravi = 133001224 = Rs.12076
1) Ratio of Salary : Saving
= 13300 : 1224
=3325 : 306
2) Salary : Expenditure
= 13300 :12076
= 3325:3019
3) Expenditure : saving
= 12076 :1224
= 3019:306
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is Samudragupta's father and Ashoka's grandfather CHANDRAGUPTA same?

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Ans. No, both are not same.
Samundargupta's father Chandrgupta belongs to the Gupta Dynasty.
Whereas Ashoka's Grandfather Chandergupta was the founder of Maurya Dynasty.
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ravi earns rupees 15300 per month.he saves rupees 1400.find the ratio of
his salary and money he saves
his salary and expenditure
his expenditure and money he saves

please say the answer fastly
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Answers:

(i) 153:14
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Money earned by Ravi = Rs. 15,300
Money saved by Ravi = Rs. 1400
Expenditure of Ravi = 153001400 = Rs.13900
1) Ratio of Salary : Saving
= 15300 : 400
=153 :4
2) Salary : Expenditure
= 15300 :13900
= 153 :139
3) Expenditure : saving
= 13900 :1400
= 139 :14
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how can we compare ratios

{tex}(a).360/120; (b).100/40; (c).180/60; {/tex}

(i) By converting the ratio in to the decimal form
(ii) By taking LCM
(iii) By crossmultiplication
in above example , A=C>B

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how the snails, snakes,birds,eathworm and cockroach move

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What is the perimeter of equivalent triangle

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perimeter of triangle= add all the length of sides
perimeter of equilateral triangle=3* length of a side
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Ans. Perimeter of Equilateral Triangle = 3 * Side of triangle
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how can we add and subtract decimals with converting it into mm ,cm, metre and kilometre

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Hello i have a question:
How can we find the we find the missing extrem term in proportion????
can u send my answer soon

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How to write a notice as I lost my pen

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Notice
BHARAT JYOTI VIDHAYALAYA ANUPPUR
Dear teacher
I am Nikunj Shrivastava of class6 . I has lost my pen in the class. I requested all the student if any body find my pen.Plese give me back.Iwill be gracefull to you.
Thank You
NameNikunj Shrivastava
Class6
Date 20417
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I
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who is ashoka

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He was the first emperor who tried to spread his messages through Inscriptions.
He was the only ruler in history to give up conquest after winning a war.
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Ans. Ashoka was an ancient Indian emperor of the Maurya Dynasty who ruled almost all of the Indian subcontinent from c. 268 to 232 BCE.
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