Question 1
19.7 19.67 19.8 19.9% 19.09
Which number is the largest from the list above ?
Solution:
19.9% = 19.9/100 = 0.199
19.09 = 19.09
19.7 = 19.7
19.67 = 19.67
19.8 = 19.8
Therefore, 19.8 is the largest number from the list above.
Question 2
8 pens costs £5.6. How much will 7 pens cost?
Solution:
8 pens cost £5.6
1 pen cost £5.6/8 = £0.7
7 pens cost £0.7 x 7 = £4.9
Therefore, 7 pens will cost £4.9.
Question 3
A concert hall has sold 60% of its tickets for a particular night 180 tickets remain unsold. How many people can the concert hall hold in total?
Solution:
Let the total number of people the hall hold be x.
Tickets sold = 60% of x
Tickets unsold= 40% of x
180 = 40x/100
x = 180*100/40
= 450
Therefore, the concert hall can hold 450 people in total.
Question 4
Three children have a median age of 11 and the range of their ages is 6. What is their median age exactly 1 year later?
Solution:
The median age of the three children is 11.
The range of their ages is 6.
The youngest child is 11 – 3 = 8 years old.
The oldest child is 11 + 3 = 14 years old.
The median age of the three children is 11.
The median age of the three children 1 year later is 12.
Therefore, the median age of the three children 1 year later is 12.
Question 5
Jo enjoys taking photographs.
He takes 78 photographs on Monday
and 64 photographs on Tuesday.
He puts his photographs in an album.
6 photographs fit on each page.
Solution:
Jo takes 78 + 64 = 142 photographs in total.
6 photographs fit on each page.
142/6 = 23.67
Therefore, Jo will need 24 pages to fit all his photographs in the album.
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