That would put you in the Sea of Sardinia.
40 degrees n, 50 degrees e is actually a sea. It is the Caspian Sea.
40° 23′ N to 43° 30′ N and 90° 8′ W to 96° 38′ W.
If you mean: n/5 = 64/40 then the value of n is 8
That point is located in an arid, mountainous part of eastern Turkey, about 2 miles southeast of the town of Küçükotlukbeli and 380 miles east of Ankara.
Beijing, China.
Frederick Town... to the South East of Washington.
5 x n = (3 x 16) - 8 5 x n = 48 - 8 5 x n = 40 n = 40/5 ie 8
40° N 9° E is in the middle of the island of Sardinia.
40 N 20 E is Albania, and the European continent
Latitude: N 40° 8' 35.178"
It is impossible to be precise in this answer, because of the area the Philippines are spread over.The Philippines are located between 116° 40', and 126° 34' E. longitude and 4° 40' and 21° 10' N. latitude
n = 32 + 8 = 40