1."Lend me two pounds," said Jill. "I'll pay it back." "But I haven't got that much," Jack replied, checking his cash. "I'll let you have what I've got if you guess how much it is. If I added half the square of half of it in pence I would get an exact number of pounds." How much did he have?

Jack had £1.92

Jack had £1.64

Jack had £1.81