Percentage of colleges offering four IT courses in four states A–D, and percentage distribution of colleges. Total colleges = 4000.

State	Python (%)	Java (%)	Multimedia (%)	AI (%)	Colleges (%)
A	86	74	59	56	35
B	80	92	82	84	15
C	74	88	84	86	20
D	68	64	68	70	30

If M and N represent the total number of colleges offering Python and Java respectively in all four states, then M minus N equals

A64

B96

C48

D32 ✓ Correct

Correct answer: (D) 32

Explanation

The answer is 32.

The colleges per state are 35, 15, 20 and 30 percent of 4000, giving 1400, 600, 800 and 1200.

Python offering gives 1204, 480, 592 and 816, totalling 3092 as M.

Java offering gives 1036, 552, 704 and 768, totalling 3060 as N.

So M minus N is 3092 minus 3060.

That equals 32.

So the answer is 32.

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