The cost of a table and a chair are in the ratio of 5 : 7. If the cost of chair and table is increased by 20%and 10%respectively, then what will be the new ratio?

The cost of a table and a chair are in the ratio of 5 : 7. If the cost

1.	The cost of a table and a chair are in the ratio of 5 : 7. If the cost of chair and table is increased by 20%and 10%respectively, then what will be the new ratio?
A.	6 : 17
B.	5 : 84
C.	0 : 77
D.	ata inadequate
E.	one of these
Answer» C. 0 : 77