In institutes P, T and U, the percentage of girls out of the total number of students with Electronics specialisation in the respective institutes is 50%, 55% and 48% respectively. What is the total number of boys in these three institutes with Electronics specialisation?

340

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386

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356

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360

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314

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Solution

The correct option is A 340
The number of boys in institutes P, T and U with Electronics specialisation,
$= \frac{220 \times 50}{100} + \frac{280 \times 45}{100} + \frac{200 \times 52}{100}$
$= 110 + 126 + 104 = 340$

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\begin{matrix} Specialisation & Men & Women HR & 2 & 3 Marketing & 7 & 5 International Business & 5 & 1 Banking & 17 & 10 IT & 1 & 2 Finance & 5 & 4 \end{matrix}

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Ratio of men to women in each specialisation
$\begin{matrix} Specialisation & Men & Women HR & 2 & 3 Marketing & 7 & 5 International Business & 5 & 1 Banking & 17 & 10 IT & 1 & 2 Finance & 5 & 4 \end{matrix}$

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In institutes P, T and U, the percentage of girls out of the total number of students with Electronics specialisation in the respective institutes is 50%, 55% and 48% respectively. What is the total number of boys in these three institutes with Electronics specialisation?

The correct option is A 340The number of boys in institutes P, T and U with Electronics specialisation, =220×50100+280×45100+200×52100 =110+126+104=340

The correct option is A 340
The number of boys in institutes P, T and U with Electronics specialisation,
$= \frac{220 \times 50}{100} + \frac{280 \times 45}{100} + \frac{200 \times 52}{100}$
$= 110 + 126 + 104 = 340$