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1. Samaira, Mahira and Kiara rented a set of DVDs at a rent of Rs. 578. If they used it for 8 hours, 12 hours and 14 hours respectively, what is Kiara's share of rent to be paid ?

A. Rs. 192

B. Rs. 204

C. Rs. 215

D. Rs. 238

Solution:

\begin{aligned} Ratio of shares \\ = 8 : 12 : 14 \\ = 4 : 6 : 7 \\ ∴ Kiara's share \\ = Rs . (578 \times \frac{7}{17}) \\ = Rs. 238 \end{aligned}

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