Probability

2X + 3Y = 31 ; 7X – 9Y = -67

X is coins that Alla have, then he get 17 coins from his teacher, then he gives 8 coins to Din and 7 coins to Jun . how much persentage of probability for all pictures revealed from his left coin now?

Answer:

Usung elimination method to Find X ; then you find that X = 2

Coins left = 2 + 17 – 9 – 7 = 4

Probability = 1 / 16 = 6,25 %

When Jenny 24 Years Old, Jonny 32 Years Old, now Jonny 56 Years Old , how many Years Old Jenny now? And the dices is difference age Jonny and Jenny then divided by 7. Then dices will throw together is difference comparison how many percent each dice will not amounted 6 and 2?

Answer:

Jenny’s age now = 56 X 24 / 32 = 42

Jonny – Jenny = 56 – 42 = 14 / 7 = 2

Probability amounted 6 = 5 / 36 = 13,8%

Probability amounted 2 = 1 / 36 = 2,7 %

Probability not amounted 6 & 2= 100 – 13,8% – 2,7% = 83,5%