Step 1: Parenthesis () Solve all problems in parenthesis FIRST.

Step 2: Exponents 2

Next, solve any numbers that have exponents.

Step 3: Multiply or Divide , Then solve any multiplication or division problems (going from left to right).

Step 4: Add or Subtract +, - Finally solve any addition or subtraction problems (going from left to right).

1. 7 x 2 + (7+3 x (5-2) ) / 4 x 2
2. 2 (28 4 ) + 3 + ( 10 - 8 ) 5
3. (10 - 2) 8 + 5 + 15 - 5

4. X= 25% * 640

5.What number is813% of 120

6. In the final exam of class IX, there are 50 students 10 % of students failed. How many students passed to class X?

7. Victor gets 92 % marks in examinations. If these are 460 marks, find the maximum marks.

8. If x : y = 2 : 5, y : z = 4 : 3 then find x : z

9. If (3x + 5y) : (7x - 4y) = 7 : 4 then find the ratio x : y

10.John weighs 65.7 kg. If he reduces his weight in the ratio of 5: 4, find his reduced weight.

12. Robin leaves $ 1245500 behind. According to his wish, the money is to be divided between his son and daughter in the ratio of 3: 2. Find the sum received by his son.

13.Two numbers are in the ratio 3: 2. If 2 is added to the first and 6 is added to the second number, they are in the ratio 4: 5. Find the numbers.

14. If a quantity is divided by the ratio of 5: 7, the larger part is 84. Find the quantity.

15.Divide 60 into two parts in the ratio of 2 : 3.

16.A manufacturer of men's suits lists a suit at $300 (this is roughly what a consumer might pay). Then a retailer buying directly from the manufacturer might get a 25% trade discount and pay.....

17.You buy goods with a list price of $800. You return goods that are defective, having a list price of $50. You are entitled to a trade discount of 20%. The seller paid $20 in freight on your behalf and added the amount to the invoice. You are offered a 4% cash discount if you pay the invoice within 15 days. What is the net amount you should pay the supplier ifyou make payment within the discount period?

19.An invoice for $75.20 has terms of 3/10, 1/30, and n/60. If you make payment 25 days after the invoice date, what amount should you pay?

20.For terms of 6/10, n/30, what annual rate do you pay the supplier if you fail to pay the invoice at the end of the discount period?