Watson has two apples, each apples divide into 8 part. If John take 3/8 pieces from the first apple and Tony take 4/8 pieces from second apple, then he get 1 basket apple from his friend. 1 basket fill with good apples and bad apples, the good is divided into 3 grade, grade A is 3/7, grade B is 2,5/7 and grade C is 1,5/7 and good one is 7 times the bad one. The bad one is X which is 8X + 3Y = 53 and 4Y – 3x = 16, determine how many pieces good apples that following grade A, B and C are left now? And how many total all apple left now?

Answer:

(2* 8/8) – 3/8 – 4/8 = 9/8 = 1 1/8

Using elimination method find X = 4

Good apple = 4 X 7 = 28; Total apple at basket = 28 + 4 = 32

Total good apple left = 28 + 1 1/8 = 29 1/8