Question

The price of a book has been
increased by Rs. 8.40 to Rs. 9.45.
The increased % is,
(A) 9 % (B) 12.5 %
(C) 10 % (D) 7.8 %​

Answer 1

Answer:

answer is 12.5%

Step-by-step explanation:

take 8.40 as 100

then find out the value of 9.45 like this

$\frac{9.45 \times 100}{8.40} \\ = 112.5$

now the change is

$112 .5 - 100 \\ = 12.5(your \: answer)$