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LenKa [72]
3 years ago
11

A three-digit number has tens digit two greater than the units digit and the hundreds digit one greater than the tens digit. The

sum of the tens and the hundreds digits is three times the units digit. What is the number?
Mathematics
1 answer:
Paha777 [63]3 years ago
5 0

Answer:

875

Step-by-step explanation:

As given, there is a three digit number

So, let assume three digit number be `xyz`.

Now, as given tens digit is 2 greater than the unit digit.

∴ y= 2+z

Next, the hundred digit one greater than the tens digit.

∴x= 1+y

The sum of the tens and the hundreds digits is three times the units digit.

∴x+y= 3z

Now, substituting the value in the equation.

x+y= 3z

⇒ (1+y)+y= 3\times (y-2)

solving it to get value of y

⇒ 2y+1= 3y-6

⇒-y= -7

∴ y=7

Next, finding value of z

y= 2+z

substituting the value of y and subtracting both side by 2

∴ z= 7-2= 5

Last, finding the value of x

x=1+y

substituting the value of y

∴ x= 8

xyz= 875

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7 0
3 years ago
El precio de un ordenador portátil ha aumentado un 25% y posteriormente fue rebajado un cierto porcentaje.Calcule que porcentaje
ZanzabumX [31]

Answer:

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Step-by-step explanation:

(This exercise has been presented in Spanish and for that reason explanation will be held in the same language)

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5 0
3 years ago
I really don't get this
diamong [38]
Replace the CIRCLES by A and the SQUARES by B:

1) A + B = 14 And

2) A - B = 2

Add 1) + 2)

A+B   =14
A-B    = 2
------   ----
2A+0 = 16 then A = 16/2 = 8. If A = 8, then B = 6

So the CIRCLE = 8  and the SQUARE = 6



6 0
3 years ago
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