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1. The cost of 5 kgs of apples is Rs. 450. The cost of 12 dozen mangoes is Rs. 4320 and the cost of 4 kgs of oranges is Rs. 240. What is the total cost of 8 kg of apples, 8 dozen of mangoes and 8 kg of oranges ?

A. Rs. 4020

B. Rs. 4080

C. Rs. 4050

D. Other than those given as option

Solution:

Cost of 5 kgs apples Rs. 450
Cost of 1 kg apples Rs.

\frac{450}{5}

Cost of 8 kgs apples =

\frac{450}{5} \times 8

= Rs.720
Cost of 12 dozens mangoes Rs. 4320
Cost of 1 dozen mangoes Rs.

\frac{4320}{12}

Cost of 8 dozen mangoes =

\frac{4320}{12} \times 8

= Rs. 2880
Cost of 4 kgs oranges = Rs. 240
Cost of 1 kg orange = Rs.

\frac{240}{4}

Cost of 8 kgs oranges =

\frac{240}{4} \times 8

= Rs. 480
Total cost = 720 + 2880 + 480 = Rs. 4080

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