Remark
Whatever the original price, he gets 70% in the first instance.
He gets 80% in the second instance.
He gets 90% in the third instance
His total income is 240 dollars.
Let the original price be x
Equation
70%x + 80%x +90%x = 240
70% = 0.7 ; 80% = 0.8 ;90% = 0.9
Solution
0.7x + 0.8x + 0.9x = 240 Take out x as a common factor and add the decimals.
x (0.7 + 0.8 + 0.9) = 240
2.4x = 240 Divide both sides by 2.4
x = 240/2.4
x = 100
So the watches should have brought in 3*100 = 300 dollars.
He only brought in 240 dollars.
He lost 300 - 240 = 60 dollars.
The answer is B.
Answer:
=
3
^
2
+
=
1
4
Step-by-step explanation:
4 2/3 is equal to 4 8/12. 3 and 1/4 is equal to 3 3/12. 4 8/12- 3 3/12 = 1 5/12. 1 1/2 would be a better estimate.
Answer: Josh borrowed $ 876 to buy the computer.
Step-by-step explanation:
Formula for simple interest : I = Prt
, where P = principal amount
r= rate of interest ( in decimal)
t=time (in years)
Total amount with simple interest to pay : A = P+I
⇒ A = P +Prt
⇒ A = P(1 +rt) (i)
As per given , A = $1,244.34
r= 12.4% = 0.124
t= 3 years
Now, put these values in (i) , we get
Hence, Josh borrowed $ 876 to buy the computer.
