Directions: Study the following pie chart carefully to answer the questions that follow. [IBPS (PO) 2012] |
Percentagewise distribution of teachers who teach six different subjects |
Total number of teachers = 1800 |
If the percentage of Mathematics teachers is increased by 50% and percentage of Hindi teachers is decreased by 25%, then what will be the total number of Mathematics and Hindi teachers together? |
A) 390
B) 379
C) 469
D) 480
E) None of these
Correct Answer: C
Solution :
Required number |
\[=\left( 1800\times \frac{13}{100}\times \frac{150}{100} \right)+\left( 1800\times \frac{8}{100}\times \frac{75}{100} \right)\] |
\[=351+108=459\] |
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