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RRB Junior Engineer Stage 1 Model Papers 4
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© examsnet.com
Question : 10
Total: 99
The printed price of a book is ₹ 320. A retailer pays ₹244.80 for it. He gets successive discounts of 10% and an another rate. His second rate is :
15%
16%
14%
12%
Validate
Solution:
Printed price
=
₹
320
,
d
1
=
10
%
Let
d
2
=
x
%
, Amount actually paid = ₹ 244.80
So, amount actually paid
=
(
1
−
10
100
)
(
1
−
x
100
)
×
320
244.80
=
90
100
×
(
100
−
x
)
100
×
320
100
−
x
=
244.80
×
100
×
100
90
×
320
=
85
⇒
x
=
15
%
© examsnet.com
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