Answer:
You're correct. x = 24.
Step-by-step explanation:
:)
Answer:
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- 10x - 5 + 5x
- 10x + 5x - 5
-5x-5
Answer: 40 %
Step-by-step explanation:
Let the amount of one card = x
Hence, the value of 20 cards ( Principal amount ) = 20x
And, the value of 22 cards ( Total amount after 3 month ) = 22x
⇒ Total interest in 3 month = 22x - 20x =2x
Let the annual interest rate = r %
( By the formula of simple interest rate )




Hence, the annual rate of interest = 40%