SSC CGL 9 Aug 2017 Shift 1 Paper

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Directions (Q.Nos. 72-75) The pie chart given below shows the break-up of number of hours of teaching various subjects at an institute by Mr. Raghav.
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Question : 72 of 100
 
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If Mr. Raghav taught a total of 500 hours, then what is the difference in number of hours of teaching algebra and modem Maths?
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