Questions
Q1.
Bill's weight decreases from 64.8 kg to 59.3 kg.
Calculate the percentage decrease in Bill's weight.
Give your answer correct to 3 significant figures.
..............................................................................................................................................
(Total for Question is 3 marks)
Q2.
Tariq buys a laptop.
He gets a discount of 5% off the normal price.
Tariq pays £551 for the laptop.
(a) Work out the normal price of the laptop.
£ ...........................................................
(2)
Joan invests £6000 in a savings account.
The savings account pays compound interest at a rate of
2.4% for the first year
1.7% for each extra year.
,(b) Work out the value of Joan's investment at the end of 3 years.
£ ...........................................................
(3)
(Total for question = 5 marks)
Q3.
Claire is making a loaf of bread.
A loaf of bread loses 12% of its weight when it is baked.
Claire wants the baked loaf of bread to weigh 1.1 kg.
Work out the weight of the loaf of bread before it is baked.
........................................................... kg
, (Total for question = 3 marks)
Q4.
x is directly proportional to the square of y.
y is directly proportional to the cube of z.
z = 2 when x = 32
Find a formula for x in terms of z.
...........................................................
(Total for question = 4 marks)
Q5.
Simplify
Q1.
Bill's weight decreases from 64.8 kg to 59.3 kg.
Calculate the percentage decrease in Bill's weight.
Give your answer correct to 3 significant figures.
..............................................................................................................................................
(Total for Question is 3 marks)
Q2.
Tariq buys a laptop.
He gets a discount of 5% off the normal price.
Tariq pays £551 for the laptop.
(a) Work out the normal price of the laptop.
£ ...........................................................
(2)
Joan invests £6000 in a savings account.
The savings account pays compound interest at a rate of
2.4% for the first year
1.7% for each extra year.
,(b) Work out the value of Joan's investment at the end of 3 years.
£ ...........................................................
(3)
(Total for question = 5 marks)
Q3.
Claire is making a loaf of bread.
A loaf of bread loses 12% of its weight when it is baked.
Claire wants the baked loaf of bread to weigh 1.1 kg.
Work out the weight of the loaf of bread before it is baked.
........................................................... kg
, (Total for question = 3 marks)
Q4.
x is directly proportional to the square of y.
y is directly proportional to the cube of z.
z = 2 when x = 32
Find a formula for x in terms of z.
...........................................................
(Total for question = 4 marks)
Q5.
Simplify
