Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8 .The result now obtained is 3 times the same number she thought of. What is the number?
Let she thoughts the no x
according to question ,she subtract the 5/2 from the no.= x-5/2
now ,she multiply the result by 8 =8(x-5/2)
according to statement
3x = 8(x-5/2)
3x=8x -20
20=5x
x=4
she thought the no. as 4
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HHH, HHT, HTH, THH, TTH, THT, HTT, TTT
Total number of possible outcomes = 8
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HHT,...
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