in qualifiers

[Sofia Sagar]

hello sir / madam

i just wanted to bring to your notice that questions like the  one asked in week 3 assignment question number 2 are hard to calculate and time consuming . they are error prone too . 

so in the qualifiers exam will we be given access to excell sheets or calculator .

 if not  is there any other way you expect us for solving such problems .

please kindly inform us . 

thank you 

[Sofia Sagar]

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[Computational Thinking Support 2]

Hi,

You will not get any questions which require lengthy calculations to solve in the qualifier exam of CT.

BTW, Week 3 Q2 is not a time consuming question if you know the concept. In pseudocode, we are calculating averages of total marks (SumT), Physics marks (SumP), Maths marks (SumM) and Chemistry marks (SumC).

A =  SumT/Count, B = SumM/Count, C = SumP/Count and D = SumC/Count,

You need to find, B + C + D - A = ?

Here, Sum of total marks (SumT) = Sum of Maths marks (SumM) + Sum of Physics marks (SumP) + Sum of Chemistry marks (SumC)

Now we divide by Count on both sides which will give averages of all.

So, {Sum of total marks (SumT) }/Count = {Sum of Maths marks (SumM)}/Count + {Sum of Physics marks (SumP)}/Count + {Sum of Chemistry marks (SumC)}/Count

The above expression will be,come A = B + C + D

Now bring A to right side, 0 = B + C + D - A

So the value of B + C + D - A = 0.

In the if expression we are comparing the value of

(a)  (B + C + D) - A <= -1 : (0 <= -1) which not true. So value of Z will not be updated.

(b)  (B + C + D) - A >= 1 : (0 >= 1) which not true. So value of Z will not be updated.

Therefore the value of Z will be 0 only.

Regards,

Deepak

IITM Online Degree Team