EduSahara™ Worksheet

Question 1

1.

Identify the Pythagorean triplet whose one of the numbers is 17

(i)

{8,15,17}
(ii)

{9,14,17}
(iii)

{6,13,17}
(iv)

{10,16,17}
(v)

{7,16,17}

Question 2

2.

Find the number of numbers between
4 2
and
5 2

(i)

10
(ii)

7
(iii)

8
(iv)

9
(v)

5

Question 3

3.

Identify the Pythagorean triplet whose smallest number is 10

(i)

{10,25,27}
(ii)

{10,26,28}
(iii)

{10,25,28}
(iv)

{10,24,26}
(v)

{10,26,27}

Question 4

4.

The solution of
√

3
lies between

(i)

1.8 and 1.9
(ii)

1.9 and 2.0
(iii)

1.6 and 1.7
(iv)

1.5 and 1.6
(v)

1.7 and 1.8

Question 5

5.

Which of the following is not a perfect square?

(i)

49
(ii)

898
(iii)

121
(iv)

144
(v)

1024

Question 6

6.

How many digits are there in the square root of 2025?

(i)

4
(ii)

3
(iii)

1
(iv)

2
(v)

(-1)

Question 7

7.

Find the smallest 3 digit number which is a perfect square?

(i)

101
(ii)

99
(iii)

100
(iv)

102
(v)

97

Question 8

8.

Which of the following is a perfect cube?

(i)

25
(ii)

9
(iii)

1000
(iv)

219
(v)

728

Question 9

9.

Identify the Pythagorean triplet whose middle number is 80

(i)

{20,80,82}
(ii)

{19,80,81}
(iii)

{18,80,82}
(iv)

{19,80,79}
(v)

{17,80,81}

Question 10

10.

Find the smallest 2 digit number which is a perfect square?

(i)

17
(ii)

14
(iii)

18
(iv)

15
(v)

16

Question 11

11.

Find the smallest 5 digit number which is a perfect square?

(i)

9999
(ii)

10000
(iii)

10003
(iv)

9997
(v)

10001

Question 12

12.

The solution of
√

11
lies between

(i)

3.33 and 3.34
(ii)

3.29 and 3.30
(iii)

3.30 and 3.31
(iv)

3.32 and 3.33
(v)

3.31 and 3.32

Question 13

13.

Find the smallest 4 digit number which is a perfect square?

(i)

1021
(ii)

1023
(iii)

1025
(iv)

1026
(v)

1024

Question 14

14.

Find the cube of
6

(i)

36
(ii)

39
(iii)

219
(iv)

213
(v)

216

Question 15

15.

The smallest number by which 2592 must be divided so that the quotient is a perfect square is?

(i)

2
(ii)

3
(iii)

1
(iv)

(-1)
(v)

4

Question 16

16.

Which of the following is not a perfect cube?

(i)

512
(ii)

219
(iii)

1000
(iv)

8
(v)

729

Question 17

17.

Find the
square root
of
9

(i)

0
(ii)

5
(iii)

3
(iv)

4
(v)

2

Question 18

18.

(i)

0.02
(ii)

2
(iii)

8.2
(iv)

2.2
(v)

0.2

Question 19

19.

The smallest number by which 8192 must be divided so that the quotient is a perfect cube is?

(i)

4
(ii)

0
(iii)

3
(iv)

2
(v)

1

Question 20

20.

Find the square root of
154.760

(i)

13.44
(ii)

11.44
(iii)

10.44
(iv)

14.44
(v)

12.44

Question 21

21.

Find the value of
19 3
−
18 3

(i)

1025
(ii)

1027
(iii)

1030
(iv)

1028
(v)

1026

Question 22

22.

The solution of
√

13
lies between

(i)

3 and 4
(ii)

4 and 5
(iii)

5 and 6
(iv)

1 and 2
(v)

2 and 3

Question 23

23.

Find the value of
20 3
+
19 3

(i)

14860
(ii)

14862
(iii)

14858
(iv)

14856
(v)

14859

Question 24

24.

Find the
cube root
of
(
-8
27
)

(i)

-2
(ii)

0
(iii)

(
-2
5
)
(iv)

(
-4
3
)
(v)

(
-2
3
)

Question 25

25.

What is the unit place digit in the square of 22?

(i)

6
(ii)

0
(iii)

5
(iv)

4
(v)

7

Assignment Key