Question 159

The cost of 14 keyboards and 8 mouse-pads is Rs. 26.240. What is the cost of 35 keyboards and 20 mouse-pads ?

Solution

Cost of 14 keyboards + Cost of 8 mouse-pads = Rs. 26,240
Multiply both sides by 2.5,
Cost of 35 keyboards + Cost of 20 mouse-pads = $$26,240\times2.5$$.
= Rs. 65,600.
Hence, Option A is correct.

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IBPS RRB Assistant 9 Sep 2012

The cost of 14 keyboards and 8 mouse-pads is Rs. 26.240. What is the cost of 35 keyboards and 20 mouse-pads ?

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