Q2.Quick Check 3. Math 9

A student scores 70 marks and 76 marks in two tests respectively. What is the lowest mark he must score in the third test to obtain grade A if an average score of 80 or more in the three tests is needed for Grade A?

• 
  

  $x>94$
  

• $x<94$

• $x\ge94$

• $x\le94$

Pete and his younger brother want to buy a present for their mother. Pete agrees to pay 6 pesos more than his brother. If the present does not cost more than 30 pesos, what is the greatest possible amount paid by Pete?

• 
  

  $x>17$
  

• $x<17$

• $x\ge17$

• $x\le17$

If the simple interest on 250 pesos for 5 years is 43.75, find the rate in per cent per annum.

If 350 yields 385 at a simple interest of

 $2\ \frac{1}{2}\%$  per annum, find the duration of the loan.

The simple interest on a sum of money invested at

 $3\ \frac{1}{2}\%$  per annum for 4 years is 100 pesos, find the principal.

Find the compound interest on 5,000 for 3 years at 4% per annum compounded annually.

To save for his retirement, Peter deposits 10, 000 pesos in an account that pays interests at 8% per annum, with interest compounded annually. What will be the amount in Peter's account after 25 years? Give your answer correct to the nearest peso.

Miss Lim plans to have 50, 000 in her account in 8 years time. What is the minimum amount of money, to the nearest peso, if she needs to place in an investment account that pays a compound interest at 7.5 % per annum?

A shopkeeper makes a profit of 20% on each item that he sells. If an item costs the shopkeeper 40 pesos, how much did he sell it for?

• 8 pesos

• 40 pesos

• 48 pesos

• 56 pesos

By selling his pens at 8.40 pesos, the shopkeeper makes a profit of 20 %. At what price should he sell his pens in order to make a profit of 40 %?

• 9 pesos

• 9.40 pesos

• 9.80 pesos

• 10.20 pesos