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What is the correct answer?
4
(
25
)
7
.
5
×
(
5
)
2
.
5
÷
(
125
)
1
.
5
=
5
?
A.
8.5
B.
13
C.
16
D.
17.5
Correct Answer :
B. 13
Let
(
25
)
7
.
5
×
(
5
)
2
.
5
÷
(
125
)
1
.
5
=
5
x
.
T
h
e
n
,
(
5
2
)
7
.
5
×
(
5
)
2
.
5
5
3
1
.
5
=
5
x
⇒
5
(
2
x
7
.
5
)
x
5
2
.
5
5
(
3
x
1
.
5
)
=
5
x
⇒
5
15
×
5
2
.
5
5
4
.
5
=
5
x
⇒
5
x
=
5
(
15
+
2
.
5
-
4
.
5
)
⇒
5
x
=
5
13
,
∴
x
=
13
.
Related Questions
The value of [(10)150 ÷ (10)146]
If m and n are whole numbers such that mn = 121, the value of (m - 1)n + 1 is:
xbxc (b + c - a) . xcxa (c + a - b)…
11 + a(n - m) + 11 + a(m - n)…
(25)7.5 × (5)2.5 ÷ (125)1.5 = 5?
11 + x(b - a) + x(c - a) …
(256)0.16 × (256)0.09 = ?
(0.04)-1.5 = ?
If x = 3 + 22, then the value of…
243)n5 × 32n + 1 9n × 3n − 1…
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