DILR Preparation Tips for MBA

Let the total cost is 100, then Marketing cost = 30, New Marketing cost after the increase of 20% = 1.2 (30) = 36, New Total cost = 106. So, the percentage shown of Marketing cost.

Let the total cost is 100, then Publishing cost = 35% of 100 = 35 & Marketing Cost = 30 % of 100 = 30. So, by  the Publishing cost is 16.66% more than the Marketing cost.

Let the total cost of writing the book is x.

So, 12 % of x =14400, Cost of Others = 15% of Total cost = 15 % of 1,20,000 = 18,000.

Shown of Printing is 8 % of the total cost. Here 100% = 360°. So, 1% = 3.6°.

So, central angle = 8 * 3.6 = 28.8°

Verify the choices one by one.

(a) The total sales of all the four companies was different in each month, hence (a) is false.

(b) For the given period:

Total Sales of C1 = 175 +150 + 225 + 250 + 150 + 200 = 1150.

Total Sales of C3 = 75 + 75 + 100 + 100 + 50 + 75 = 475.

Hence, (b) is false.

(c) Total Sales of C2 for the given period = 650

Required percentage

$=\frac{650}{1150+475+1375+650}=17.8\mathrm{\%}$

(d)          The sales of C2 were less than the sales of C4 in each month. Hence, (d) is false

Month = C3/Total Sales*100

January $\frac{75}{550}*100=13.6\mathrm{\%}$

February $\frac{75}{500}*100=15\mathrm{\%}$

March $\frac{100}{700}*100=14.28\mathrm{\%}$

April $\frac{100}{800}*100=12.5\mathrm{\%}$

May $\frac{50}{450}*100=11.11\mathrm{\%}$

June $\frac{75}{650}*100=11.53\mathrm{\%}$

Month = C1/Total Sales * 100

January $\left(\frac{175}{550}\right)*100=31.31\mathrm{\%}$

February $\left(\frac{150}{500}\right)*100=30\mathrm{\%}$

March $\left(\frac{225}{700}\right)*100=32.14\mathrm{\%}$

April $\left(\frac{250}{800}\right)*100=31.25\mathrm{\%}$

May $\left(\frac{150}{450}\right)*100=33.33\mathrm{\%}$

June $\left(\frac{200}{650}\right)*100=30.7\mathrm{\%}$

No month have sales more than 33.33%. Hence option (d)

Month = C3/ (C2+C4)

January $\left(\frac{75}{100+200}\right)=25\mathrm{\%}$

February $\left(\frac{75}{100+175}\right)=27.27\mathrm{\%}$

March $\left(\frac{100}{125+250}\right)=26.66\mathrm{\%}$

April $\left(\frac{100}{150+300}\right)=22.22\mathrm{\%}$

May $\frac{50}{75+175}=20\mathrm{\%}$

June $\frac{75}{100+275}=20\mathrm{\%}$

Hence, the required percentage was the most in the month of February.

Required Ratio

 = Increase in R4/ Increase in R3

$=\frac{2046}{2028}=1$