Identify the TRUE statement

Let's check it option by option;

a) Number of worker’s per factory is third highest for industry 6

number of worker's per factory in industry 1 : 9066/65 = 139.47

number of worker's per factory in industry 2 : 877/110 = 7.97

number of worker's per factory in industry 3 : 5656/32 = 176.75

number of worker's per factory in industry 4 : 1099/30 = 36.63

number of worker's per factory in industry 5 : 7508/78 = 96.25

number of worker's per factory in industry 6 : 3333/39  =85.46

number of worker's per factory in industry 7 : 15670/300 = 52.23

we can clearly see that number of workers per factory 4th highest for industry 6 ; hence statement 1 is false.

Moving on to statement b);

Expense on Material consumption expressed as a percentage of input cost is second highest for industry 4

for industry 1: 77%

for industry 2: 69%

for industry 3: 71%

for industry 4: 83%

for industry 5: 88%

for industry 6: 88.8%

for industry 7: 62%

Hence statement b) is also false as it is third highest.

Moving on statement c);

Profit earned expressed as a percentage of emolument is second highest for Industry 7

for industry 1: 39%

for industry 2: 122%

for industry 3: 144%

for industry 4: 389%

for industry 5: 376%

for industry 6: 513%

for industry 7: 301%

clearly, Profit earned expressed as a percentage of emolument is second highest for Industry 6 which makes statement c false.

Now we have only 1 statement left which has to be true.

So our answer is D)

you can also cross-check it but it is not recommended in exam time.