Question

The list price of a watch is 160. After two success
discounts, it is sold for Rs. 122.40. If the first discos
is 10%. What is the rate of second discount?​

Answer 1

Step-by-step explanation:

122.40÷10=12.24+160 =172.24

Answer 2

Answer:

Step-by-step explanation:

discount of 10% gives 90% of the original

=> 160 x 0.9 x p = 122.4....where p is the second discount.

so, p = 122.4/144 => 0.85

i.e. 85% of previous quantity => 15% discount.