Pursuit co J11 Q1 and westerplay co (J20)

Sir 1 thing which is confusing me a lot in these 2 questions is that

In Westparley co, Qs asked that estimate the value which Westparley Co’s shareholders will gain from the acquisition of Matravers Co

So what examiner did that

Combined Co value including PV of synergy = 15872 + 1842
Add: Sell off proceeds = 5058
Less: pre acq value of Matravers co= 12500 + 6500
Less : premium payable to Matravers co shareholders = (12500 x 15%)

So 1897 is the answer.

However, in Pursuit co net benefit to pursuit co shareholders is calculated as follows

Combined Co value = 189169000
Less : Pre acq value of pursuit co (140000000)
Less : Pre acr value of fodder co (40095000)
less: premium payable to fodder co shareholders = (36086000 x 25%)

So 52500 is the answer.

Now my Qs and confusion is that in westerpay Qs he has not deducted pre acq value of acquirer co (westerplay co). On the other hand , in pursuit co he has deduced pre acq
value of acquirer co (pursuit co). Why there is difference in the treatment while calculating benefit to acquirer co shareholders in the above 2 questions?
Has examiner done wrong somewhere?