Secondary School (English Medium) (5 to 8) कक्षा ८ - CBSE Question Bank Solutions for Mathematics

Mathematics

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The runs scored by a cricket team in first 15 overs are given below:

Overs:	I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII	XIII	XIV	XV
Runs:	2	1	4	2	6	8	10	21	5	8	3	2	6	8	12

Draw the graph representing the above data in two different ways as a graph and as a bar chart.

[13] Introduction to Graphs

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Chapter: [13] Introduction to Graphs
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The runs scored by two teams A and B in first 10 overs are given below:

Overs:	I	II	III	IV	V	VI	VII	VIII	IX	X
Team A:	2	1	8	9	4	5	6	10	6	2
Team B:	5	6	2	10	5	6	3	4	8	10

Draw a graph depicting the data, making the graphs on the same axes in each case in two different ways as a graph and as a bar chart.

[13] Introduction to Graphs

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Chapter: [13] Introduction to Graphs
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The compound interest payable annually on a certain sum for 2 years is Rs 40.80 and the simple interest is Rs 40. Find the sum and the rate percent.

[7] Comparing Quantities

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Chapter: [7] Comparing Quantities
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A sum of Rs. 20,000 is borrowed by Heena for 2 years at an interest of 8% compounded annually. Find the Compound Interest (C.I.) and the amount she has to pay at the end of 2 years.

[7] Comparing Quantities

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Chapter: [7] Comparing Quantities
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Divide 44(x⁴– 5x³– 24x²) by 11x(x – 8).

[12] Factorization

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Chapter: [12] Factorization
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Divide z(5z²– 80) by 5z(z + 4)

[12] Factorization

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Chapter: [12] Factorization
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The given graph describes the distances of a car from a city P at different times when it is travelling from City P to City Q, which are 350 km apart. Study the graph and answer the following:

(i) What information is given on the two axes?

(ii) From where and when did the car begin its journey?

(iii) How far did the car go in the first hour?

(iv) How far did the car go during (i) the 2nd hour? (ii) the 3rd hour?

(v) Was the speed same during the first three hours? How do you know it?

(vi) Did the car stop for some duration at any place? Justify your answer.

(vii) When did the car reach City Q?

[13] Introduction to Graphs

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Chapter: [13] Introduction to Graphs
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Solve: 5x + `7/2 = 3/2x` - 14

[2] Linear Equations in One Variable

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Chapter: [2] Linear Equations in One Variable
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The rational numbers `1/3` and `(-1)/3`are on the ______ sides of zero on the number line.

[1] Rational Numbers

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