EduSahara™ Assignment
Name : Solving Equations with Indices
Chapter : Exponents
Grade : ICSE Grade VII
License : Non Commercial Use
Question
1
1.
If
3
d
=
243
, find
d
(i)
5
(ii)
4
(iii)
2
(iv)
6
(v)
7
Question
2
2.
If
2
x
=
8
, find
4
x
(i)
65
(ii)
66
(iii)
63
(iv)
64
(v)
62
Question
3
3.
If
2
(
7
x
+
2
)
=
8
(
2
x
+
4
)
, find
x
(i)
12
(ii)
8
(iii)
9
(iv)
10
(v)
11
Question
4
4.
If
729
(
j
+
1
)
=
27
3
j
, find
j
(i)
2
(ii)
1
(iii)
(-1)
(iv)
3
(v)
5
Question
5
5.
If
16
(
x
+
9
)
=
256
12
=
4
y
, find
y
(i)
47
(ii)
49
(iii)
48
(iv)
51
(v)
45
Question
6
6.
If
3
r
=
9
, find
3
(
r
+
2
)
(i)
78
(ii)
83
(iii)
80
(iv)
82
(v)
81
Question
7
7.
If
(
9
12
)
36
=
(
9
108
)
e
, find
e
(i)
2
(ii)
3
(iii)
5
(iv)
7
(v)
4
Question
8
8.
If
16
✕
2
n
=
2
6
, find
n
(i)
1
(ii)
4
(iii)
2
(iv)
0
(v)
3
Question
9
9.
If
5
(
2
q
+
1
)
÷
25
=
5
5
, find
q
(i)
4
(ii)
2
(iii)
5
(iv)
1
(v)
3
Question
10
10.
(
f
8
+
g
8
)
0
=
(i)
1
(ii)
(-1)
(iii)
0
(iv)
f
8
+
g
8
(v)
4
Assignment Key
1) (i)
2) (iv)
3) (iv)
4) (i)
5) (iii)
6) (v)
7) (v)
8) (iii)
9) (v)
10) (i)
