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RRB NTPC Mains or Stage 2 Model Paper 2 with solutions
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© examsnet.com
Question : 33
Total: 120
A telephone bill costs ₹35.50 for 3 minutes 20 seconds. What is the cost, in rupees, for 5 minutes 30 seconds? (Round up to one decimal).
58.8
58.5
58.7
58.6
Validate
Solution:
(d) 3 minutes 20 seconds = 200 seconds
∵ A telephone bill costs of 200 seconds = 35.50
∴ Costs of 5 minutes 30 seconds (5 minutes 30 seconds = 330 seconds)
35.50
200
×
330
=
58.575
≈
58.6
.
© examsnet.com
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