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ICSE Class 8 Answered

In an examination, the ratio between those who passed with distinction and those who passed is the same as the ratio between those who passed and those who appeared for the examination. If only 4 candidates passed with distinction out of the 1156 candidates who appeared, find the number of candidates who passed the exam. 
Asked by Cl_narayan | 30 Jul, 2019, 05:03: PM
answered-by-expert Expert Answer
begin mathsize 16px style According space to space the space condition space in space the space question comma space we space get fraction numerator Number space of space students space who space passed space in space an space examination space with space distinction over denominator Number space of space students space who space passed space in space an space examination end fraction equals fraction numerator Number space of space students space who space passed space in space an space examination over denominator Number space of space students space who space appeared space in space the space examination space end fraction Let space Number space of space students space who space passed space in space an space examination space be space straight x. rightwards double arrow 4 over straight x equals straight x over 1156 rightwards double arrow straight x squared space equals space 4 space cross times space 1156 space rightwards double arrow straight x squared space space equals space 4624 rightwards double arrow straight x space space space equals space 68 end styleTherefore the number of candidates who passed the examination is 68.
Answered by Yasmeen Khan | 30 Jul, 2019, 05:42: PM
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