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Hiw many bricks of size 12cm × 6cm × 4cm are required to construct a wall 10m long, 4 m high and 20cm thick, if the cement and sand used in the construction occupy 1/10th part of the wall

Posted by Abhishek Kumar 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Abhishek Kumar 7 years ago

Thnx

Ram Kushwah 7 years ago

Volume of wall =10x4x20/100=8m³=8000000cm³

^{Cement 10%=800000}

^{wall-cement =7200000 cm3}

^{vol of brick = 12*6*4=288}

^{no of bricks= 7200000 / 288=25000 bricks ans}

ANSWER

Convert the following ratio percentage 4.5

Posted by Sahas Surduse 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Vansh Sharma 7 years ago

Obviously, 80%

Yogita Ingle 7 years ago

4/5 = (4/5 × 100) % = 80 %

ANSWER

(a+b)(c-d)+(a-b)(c+d)+2(ac+bd)

Posted by Utsav Mishra 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Pardeep Kumar 7 years ago

a+b

ANSWER

2.0+1

Posted by Gaurav Shukla 7 years ago

CBSE > Class 08 > Mathematics

3 answers

Gaurav Shukla 7 years ago

3.0

Vansh Sharma 7 years ago

Yeah bro, 3

Indrajit Prasad Sinha 7 years ago

3

ANSWER

Solve:- (a-m) (b-m) (c-m)............. (z-m)

Posted by Era Neutera 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Area of door is 5 cm then what is the area of 2door

Posted by Lucky Dewangan 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Vansh Sharma 7 years ago

10

Indrajit Prasad Sinha 7 years ago

10

ANSWER

103+103

Posted by Parvathi Raj 7 years ago

CBSE > Class 08 > Mathematics

4 answers

Vansh Sharma 7 years ago

Both three are Correct, 103 + 103 ______ 206

Mayank Dahiya 7 years ago

Answer is 206

Mayank Dahiya 7 years ago

Correct

Yogita Ingle 7 years ago

103
103
______
206

ANSWER

How many meters the in ten kilometers?

Posted by Pardeep Kumar 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 7 years ago

A kilometer (symbol: km) is a unit of length in the International System of Units (SI).
A meter, or metre (symbol: m), is the base unit of length and distance in the International System of Units (SI).
1 km = 1000 m
So, 10 km = 10000 m

ANSWER

a4 -b4

Posted by Shivani Rahul 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Shivani Rahul 7 years ago

(a2)2 -(b2)2 (a2+ b2) (a2-a2) (a2+b2) (a+b) (a-b)

ANSWER

(a+b)hole squre =?

Posted by Arshpreet Kaur 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Pardeep Kumar 7 years ago

a²+2ab+b²

Ritik Bhardwaj Bhardwaj 7 years ago

a2+b2+2ab

ANSWER

by what rational number should -5 be multiply to get -23 as a product

Posted by Shubham Kaushik 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Vivek Kumar 7 years ago

2x-24x =-23

ANSWER

identites

Posted by Hargun Gill 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

10.A

Posted by Rohit Kumar 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Ex 11.1 1 question

Posted by Ansh Singh 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Usha Rani Jena 7 years ago

Answer- side of square = 60m Perimeter of square = 4×side = 4×60m =240m Length of rectangle = 80m Let breadth = b meters According to question Perimeter of rectangle = 2×(L+B)=240 = L+B= 240÷2 =120m 80+b=120m b=120-80 b=40m Area of square= side× side = 60 ×60m =3600m Square Area of rectangle= L×B = 80×40m = 3200m square Square has larger Area .

ANSWER

A dealer marks a tv set with a price which is 25 percent more than the cost price and allows a discount of 10% on it.find his gain irvloss percent

Posted by Shiny . 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Rishu Singh 7 years ago

THE DEALER WILL GAIN 15 PERCENT

ANSWER

On sunday 845 people went to the zoo.on monday only 169 people went to the zoo. What is the percent decreases in the people visiting to the zoo on monday

Posted by Shraddha Mishra 7 years ago

CBSE > Class 08 > Mathematics

2 answers

V Siva 7 years ago

Sorry 20%

V Siva 7 years ago

200%

ANSWER

Identify the coefficient of each term in the expression x2y2-10x2y+5xy2-20.

Posted by Nilesh Patil 6 years, 5 months ago

CBSE > Class 08 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

The coefficients of the term x²y² is 1, -10x²y is -10,5xy² is 5 and –20 is -20.

ANSWER

What will be the answer? 0 raise to the power 0

Posted by Saurabh Gupta 7 years ago

CBSE > Class 08 > Mathematics

5 answers

Mayank Dahiya 7 years ago

As, 0 power mans 1 So, 0 power 0 is 0 power 1 and it means the answer is 1

Mayank Dahiya 7 years ago

Answer will be 1

Sharvika Sundar 7 years ago

1

Ansh Singh 7 years ago

0

Rishu Singh 7 years ago

O

ANSWER

Try this of 12th lesson all

Posted by Prajwal Vardhaman 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

A pit 3m×2.4m×90cm is dug. The earth dug out was evenly spread 12cm high on a 4m wide plateform. Find the length of the plateform.

Posted by Prince Singh 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Prajwal Vardhaman 7 years ago

Try this of 12th lesson

ANSWER

What is the Area of hollow cylinder

Posted by Nisarg Wagh 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Ansh Singh 7 years ago

2pie r / h+r/=2×22/7×3.5(10+3.5)=297cm square

ANSWER

Rs Aggarwal ex17a q12

Posted by Suryansh Kaushik 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

If you have trapezium how we find its perimeter and area

Posted by Akshit Sharma 6 years, 5 months ago

CBSE > Class 08 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

The perimeter of a trapezoid is the sum of the lengths of its four sides.
Area = {tex}A = \frac { a + b } { 2 } h{/tex}

ANSWER

What is 1plus 1

Posted by S G 7 years ago

CBSE > Class 08 > Mathematics

2 answers

Mayank Dahiya 7 years ago

Answer for it 2

Ashwini Choudhary 7 years ago

1+1=2

ANSWER

Is there any easy method to learn prime factorisation

Posted by S G 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

What is the root

Posted by Krishna Bhai 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Yuv Raj 7 years ago

That is found inside the ground under the plant

ANSWER

Aftab

Posted by Aftab Attar 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

7...IUU

Posted by Jitendra Kushwah 7 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

5a,3a²,7a⁴

Posted by Anant Patidar 2 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Estimate the value of 80 to the nearest whole number

Posted by Drashti Kapadia 7 years ago

CBSE > Class 08 > Mathematics

1 answers

Pritam Dhar 7 years ago

79.

ANSWER

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