534	NICHOLLS'S  SEAMANSHIP  AND NAUTICAL   KNOWLEDGE
Find the position of the resultant C. of G., and also the G M if the
metacentre is 20-5 feet above the keel.
Answer.—G M —'4 feet.
(ii) The above GM being unsatisfactory it is decided that two
ballast tanks shall be run up, No. 3 tank 300 tons, V.C.G. 2 ft. and No. 4
tank 400 tons, V.C.G. 1-5 ft. Find the new GM assuming the KM
to be 20-5 feet.
Answer.—G M 1 foot.
27.	Given the following information from a cargo plan.    Find the
new C. of G., and if the K M is 22 feet find also the G M.:—
Weightr-Tons%     1000   1500   1250   1100     900     600     400
V.C.G.—Feet	24       22       21       19       23       25       18
Light condition of ship 3250 tons displacement, initial C. of G. 20
feet above keel.
Answer —*8 feet.
28.	At the first port of call the following cargo was discha ged from
the above ship, find the new G M assuming K M to be 22 feet:—
Weight—Tons         400     300     500     600
V.C.G.—Feet	20       22       23       24
r.—ri foot.
29.	A ship arrived in port, draught 21 ft. 00 ins. forward, 23 ft. 00 ins.
aft, and discharged cargo as follows:—If her T.P.I, is 45 tons and her
I.T.M. is 1100 foot-tons, find her new draught.
Cargo in tons	200         450         300     500         200
Distance from T.C. in feet   30F        25 F       50 F    35 A     40 A
Answer.—17 feet 8^ ins. forward.
20   „   2J   „   aft.
30.	It is desired to bring a ship on to an even keel, her present
dxaugnt is 17 ft. 08-2 ins. forward, 20 ft. 01-6 ins. aft. and I.T.M. 1100.
foot-tons.   What distance must 300 tons of cargo be shifted forward
to do so?
Answer.—107*8 feet.