math question 60=30=9=42
Answers
Answer:
The correct value is 30.
Step-by-step explanation:
Consider the given figure.
Let shoes represents by x, man with y and goggles with z.
It is given that:
x+x+x=60
3x=60
x=20
Shoes = 20
From second row:
x+y+y=30
20+2y=30
2y=10
y=5
Man = 5
From third row:
z+y+z=9
2z+5=9
2z=4
z=2
Goggles = 2
We want to find the value of shoes + man × goggles.
This can be written as:
20 + 5 × 2 = 20+10 = 30
Hence, the correct value is 30.
Answer:
To find:
The value of last line
Explanation:
in the first line:
three shoes = 60
20+20+20=60
one shoe = 20
one shoe + 2 boys = 30
20 + 2 boys = 30
one boy = 5
20+2(5) =20+10= 30
2 shades + one boy = 9
2 shades + 5 = 9
one shade = 2
2(2)+5= 9
4+5=9
one shoe + one glove + one shade = 42
20 + one glove + 2= 42
22 + one glove = 42
one glove = 20
now the solution is
one shoe + one boy × one shade = ?
20 + 5 × 2 = 30