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(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

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Following table present educational level (middle stage) of females in Arunachal pradesh according to 1981 census:

Age group Number of females
(to the nearest ten)
10 - 14 300
15 - 19 980
20 - 24 800
25 - 29 380
30 - 34 290

Draw a histogram to represent the above data.

[19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Chapter: [19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Concept: undefined >> undefined

Distribution of height in cm of 100 people is given below:

Class interval (cm) Frequency
145 - 155 3
155 - 165 35
165 - 175 25
175 - 185 15
185 - 195 20
195 - 205 2

Draw a histogram to represent the above data.

[19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Chapter: [19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Concept: undefined >> undefined

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The time taken, in seconds, to solve a problem for each of 25 persons is as follows:

16 20 26 27 28
30 33 37 38 40
42 43 46 46 47
48 49 50 53 58
59 60 64 52 20

(i) Construct a frequency distribution for these data using a class interval of 10 seconds.
(ii) In a school the weekly pocket money of 50 students is as follow's:

Weekly pocket money (₹) No. of student
40 - 50 2
59 - 60 8
60 - 70 12
70 - 80 14
80 - 90 8
90 - 100 6

Draw a histogram and a frequency polygon on the same graph. Find mode from the graph.

[19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Chapter: [19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Concept: undefined >> undefined

Draw a histogram and frequency polygon to represent the following data (on the same scale) which shows the monthly cost of living index of a city in a period of 2 years:

Cost of living Index Number of months
440 - 460 2
460 - 480 4
480 - 500 3
500 - 520 5
520 - 540 3
540 - 560 2
560 - 580 1
580 - 600 4
Total  24
[19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Chapter: [19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Concept: undefined >> undefined

Draw the histogram for the following frequency distribution and hence estimate the mode for the distribution.

Class Frequency
0 - 5 2
5 - 10 7
10 - 15 18
15 - 20 10
20 - 25 8
25 - 30 5
Total 24
[19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Chapter: [19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Concept: undefined >> undefined

Draw a histogram to represent the following data:

Pocket money in ₹ No. of Students
150 - 200 10
200 - 250 5
250 - 300 7
300 - 350 4
350 - 400 3
[19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Chapter: [19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Concept: undefined >> undefined

(Use a graph paper for this question.) The daily pocket expenses of 200 students in a school are given below:

Pocket expenses
(in ₹)
Number of students
(frequency)
0 - 5 10
5 - 10 14
10 - 15 28
15 - 20 42
20 - 25 50
25 - 30 30
30 - 35 14
35 - 40 12

Draw a histogram representing the above distribution and estimate the mode from the graph.

[19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Chapter: [19] Statistics : basic concepts, Mean, Median, Mode. Histograms and Ogive
Concept: undefined >> undefined

Find the remainder (without divisions) on dividing f(x) by x – 2, where f(x) = 5x2 – 1x + 4

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Find the remainder (without divisions) on dividing f(x) by x – 2, where f(x) = 2x3 – 7x2 + 3

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Using remainder theorem, find the remainder on dividing f(x) by (x + 3) where f(x) = 2x2 – 5x + 1

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Using remainder theorem, find the remainder on dividing f(x) by (x + 3) where  f(x) = 3x3 + 7x2 – 5x + 1

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Find the remainder (without division) on dividing f(x) by (2x + 1) where f(x) = 4x2 + 5x + 3

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Find the remainder (without division) on dividing f(x) by (2x + 1) where f(x) = 3x3 – 7x2 + 4x + 11

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Find the remainder (without division) when 2x3 – 3x2 + 7x – 8 is divided by x – 1 (2000)

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Find the remainder (without division) on dividing 3x2 + 5x – 9 by (3x + 2)

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Using remainder theorem, find the value of a if the division of x3 + 5x2 – ax + 6 by (x – 1) leaves the remainder 2a.

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

When divided by x – 3 the polynomials x3 – px2 + x + 6 and 2x3 – x2 – (p + 3)x – 6 leave the same remainder. Find the value of ‘p’.

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

Find ‘a’ if the two polynomials ax3 + 3x2 – 9 and 2x3 + 4x + a, leaves the same remainder when divided by x + 3.

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

 What number must be subtracted from 2x2 – 5x so that the resulting polynomial leaves the remainder 2, when divided by 2x + 1 ?

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined

What number must be added to 2x3 – 7x2 + 2x so that the resulting polynomial leaves the remainder – 2 when divided by 2x – 3?

[7] Factorisation of Polynomials
Chapter: [7] Factorisation of Polynomials
Concept: undefined >> undefined
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