NIFT UG 2019 Question Paper with solutions

Question : 11 of 150

Marks: +1, -0

Samira, Mahira and Kiara rented a set of DVDs at a rent of

₹ 578

. If they used it for

8 {h}, 12 {h}

and

14 {h},

respectively. What is Kiara's share of rent to be paid?

Solution:

Here, rent of DVD is proportional to the hours used.
Ratio of time among Samira, Mahira and Kiara

=8: 12: 14

=4: 6: 7

Kiara's share

=\;{7}/{17} × ₹ 578=\;{7}/{17} × 578

=7 × 34=₹ 238

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