If the percentage of Chemistry teachers is increased by 50 and percentage of Maths teachers is decre...........

Quantitative Aptitude ( CCS) Pie Chart

Percentagewise distribution of teachers who teach six different subjects
Total Number of Teachers = 1800

If the percentage of Chemistry teachers is increased by 50% and percentage of Maths teachers is decreased by 25%, what will be the total number of Chemistry and Maths teachers together?

390

379

469

459

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Explanation:

Explanation :
Total number of teacher who teach Chemistry = 234 + 117 = 351
Total number of teacher who teach Maths = 3/4 * 8% of 1800 = 108
Total number of Chemistry and Maths teachers together = 351 + 108 = 459