You have a coupon for an additional 25% off the price of any sell it item at a store the store has put a robotics kit on sale for 15% off the original price of $40 what is the price of the robotics kit after both discounts

the kit costed $40 - $6 = $34 after the first general discount. Now the question is if the coupon relates to the original price or to the lowered price. We'll do both:

If it relates to the original price, we need to find how much is 25% of $40. We can do it in mind - it's $10. So with two discounts the price would be $40 - $6 - $10 = $24.

However, if it relates to the lowered price, we need to find how much is 25% from $34:

34 * 25% =

= 34 * 25/100 =

= 34 * 1/4 =

= 8.5 [dollars]

So the final price in such a situation would be $40 - $6 - $8.5 = $25.5