# Math in Focus Grade 5 Chapter 10 Practice 3 Answer Key Percent of a Number

Practice the problems of Math in Focus Grade 5 Workbook Answer Key Chapter 10 Practice 3 Percent of a Number to score better marks in the exam.

## Math in Focus Grade 5 Chapter 10 Practice 3 Answer Key Percent of a Number

Multiply.

Question 1.
25% × 84 = ___
Explanation:
We represent the unknown value with x.
x= 84 x $$\frac {25} {100}$$

Question 2.

36% × 75 = ___
Explanation:
We represent the unknown value with x.
x= 75 x $$\frac {36} {100}$$

Question 3.
40% of 680 = ___
Explanation:
We represent the unknown value with x.
x= 680 x $$\frac {40} {100}$$

Question 4.
55% of 720 = ___
Explanation:
We represent the unknown value with x.
x= 720 x $$\frac {55} {100}$$

Question 5.
Of the 240 shirts on a rack, 40% are size medium. How many shirts on the rack are size medium?

96 shirts are medium size.
Explanation:
total shirts are 240
240 x 40 %
= (240 x 40 )/100
= 24 x 4
= 96

Question 6.
There are 720 students in a school. One rainy day, 5% of the students were absent. How many students were absent?

36 students were absent.
Explanation:
720 x 5 %
= (720 x 5 )/100
= (72 x 5)/10
= 36

Question 7.
Jenny made 200 bracelets. She sold 64% of the bracelets at a craft fair.

a. How many bracelets did she sell?
128 bracelets
Explanation:
200 x 64%
= (200  x 64)/100
= 2 x 64
=128

b. How many bracelets were not sold?
72 bracelets or 36%
Explanation:
200 – 128 = 72
or 100% – 64% = 36%
200 x 36%
= (200 x 36)/100
= 72 bracelets

Question 8.
There were 12,000 spectators in one section of the stadium. In that section, 55% had on red shirts and the rest had on white shirts. How many spectators had on white shirts?
5400 spectators had on white shirts
Explanation:
12000 x 55%
= (12000 x 55)/100
= 6600 red shirts
12000 – 6600 = 5400 white shirts

Question 9.
Mrs. Patel went shopping with $1 20. She spent 12% of the money on meat, and 25% on vegetables. How much money did she have left? Answer:$75.6
Explanation:
money spent on meat
$120 x 12% (120 x 12)/100 =$14.4
money spent on vegetables
$120 x 25% (120 x 25)/100 =$30
money left
120 – (14.4 + 30) =75.6