EduSahara™ Assignment
Name : G.C.D
Chapter : Factors and Multiples
Grade : ICSE Grade VII
License : Non Commercial Use
Question
1
1.
The factors of 25 =
(i)
{1,5,25,24}
(ii)
{25,4,2}
(iii)
{1,25,4}
(iv)
{1,5,25}
(v)
{1,5,25,2,4}
Question
2
2.
The factors of 46 =
(i)
{1,2,23,46,22}
(ii)
{1,2,23,46}
(iii)
{1,23,45,22}
(iv)
{1,2,46}
(v)
{1,2,23,46,3,45}
Question
3
3.
The factors of 29 =
(i)
{1,29}
(ii)
{1,29,28,2}
(iii)
{1,29,28}
(iv)
{2,28}
(v)
{29,2}
Question
4
4.
The factors of 50 =
(i)
{1,2,5,25,4,26}
(ii)
{1,2,5,10,25,50,4,26}
(iii)
{1,2,5,10,25}
(iv)
{1,2,5,10,25,50,49}
(v)
{1,2,5,10,25,50}
Question
5
5.
Find all common factors of 3 and 17
(i)
{17}
(ii)
{3}
(iii)
{1,3}
(iv)
{1,17}
(v)
{1}
Question
6
6.
Find all common factors of 14 , 34 and 50
(i)
{2,34}
(ii)
{1,2}
(iii)
{1,2,7}
(iv)
{1,2,17}
(v)
{1,7}
Question
7
7.
Find all common factors of 13 and 5
(i)
{1,5}
(ii)
{13}
(iii)
{5}
(iv)
{1}
(v)
{1,13}
Question
8
8.
Find all common factors of 34 , 45 and 18
(i)
{15}
(ii)
{17}
(iii)
{1}
(iv)
{1,34}
(v)
{1,15}
Question
9
9.
Find the HCF of
{15,8}
(i)
4
(ii)
2
(iii)
1
(iv)
(-1)
(v)
0
Question
10
10.
Find the HCF of
{27,20}
(i)
3
(ii)
(-2)
(iii)
1
(iv)
0
(v)
2
Question
11
11.
Find the HCF of
{14,4,33}
(i)
2
(ii)
1
(iii)
0
(iv)
(-1)
(v)
3
Question
12
12.
Find the HCF of
{12,30,36,22}
(i)
3
(ii)
1
(iii)
0
(iv)
2
(v)
5
Question
13
13.
Find the HCF of
{75,90}
(i)
12
(ii)
14
(iii)
15
(iv)
17
(v)
16
Question
14
14.
Find the HCF of
{384,480}
(i)
98
(ii)
97
(iii)
96
(iv)
94
(v)
95
Question
15
15.
Find the HCF of
{450,380,210}
(i)
7
(ii)
11
(iii)
10
(iv)
13
(v)
9
Question
16
16.
Find the HCF of
{80,1240,1480,640}
(i)
40
(ii)
41
(iii)
42
(iv)
37
(v)
39
Question
17
17.
Find the product of LCM and HCF of
{6,8}
(i)
46
(ii)
50
(iii)
48
(iv)
47
(v)
49
Question
18
18.
Find the product of LCM and HCF of
{22,27}
(i)
595
(ii)
593
(iii)
592
(iv)
594
(v)
597
Question
19
19.
Find the product of LCM and HCF of
{14,4,10}
(i)
279
(ii)
282
(iii)
278
(iv)
281
(v)
280
Question
20
20.
Find the product of LCM and HCF of
{6,20,10,26}
(i)
1560
(ii)
1558
(iii)
1563
(iv)
1561
(v)
1559
Question
21
21.
The simplest form of the fraction
156
221
is
(i)
14
17
(ii)
12
17
(iii)
12
19
(iv)
4
5
(v)
10
17
Question
22
22.
Reduce the fraction
324
648
(i)
3
2
(ii)
(
-1
2
)
(iii)
1
2
(iv)
1
(v)
1
4
Assignment Key
1) (iv)
2) (ii)
3) (i)
4) (v)
5) (v)
6) (ii)
7) (iv)
8) (iii)
9) (iii)
10) (iii)
11) (ii)
12) (iv)
13) (iii)
14) (iii)
15) (iii)
16) (i)
17) (iii)
18) (iv)
19) (v)
20) (i)
21) (ii)
22) (iii)
