Answer:
Step-by-step explanation:
Cost price = (100/100+Profit%) * Selling Price = ( 100 /115)*40
= Rs. 34.78
I believe it is A......
yes Cecilia make her first mistake in step 2
It's 5/7
You get that by having a calculator that does that. If you don't then the way to do it is multiply the numerator and denominator by 1.25
4 * 1.25 = 5
5.6 * 1.25 = 7
