Question

cost of a two watch are in the ratio 16:23.the cost of first watch increase by 10% and that of second by rs 477.now the coast of two watch is in the ratio 11:20. the price of the second watch inthe beging was​

Answer 1

Answer:

Rs 1219

Step-by-step explanation:

cost of a two watch are in the ratio 16:23.the cost of first watch increase by 10% and that of second by rs 477.now the coast of two watch is in the ratio 11:20.

cost of a two watch are in the ratio 16:23

Let say First watch Price = 16W  Rs

Second watch Price = 23W  Rs

cost of first watch increase by 10%

16W + (10/100)16W  = 17.6W  Rs

Second watch price increased by Rs 477

23W + 477  

now ratio 11:20.

17.6W : (23W + 477)  :: 11:20

=>  17.6W / (23W + 477)   = 11/20

=> 352W = 253W +  477*11

=> 99W = 477 * 11

=> 9W = 477

=> W = 53

23W = 23*53 = 1219

the price of the second watch in the beginning was​ Rs 1219