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3 years ago

Is 1485 divisible by 2,3,5,6,9,10

2 answers:

8 0

The simple and easiest way to find it is that you add all the numbers of that value i.e.: 1485=1+4+8+5 it will give u a number which will tell u if it is divisible by what number i mean that: 1+4+8+5=18 so 18 is divisible by 2, 3, 6, and 9

Agata [3.3K]3 years ago

7 0

Answer:

A number to be divisible by 2 should have the last digit even but the number 1485 does not have last digit even hence not divisible by 2.

A number to be divisible by 3 should have digit sum divisible by 3 so, 1 + 4+ 8 + 5 = 18 is divisible by 3 have 1485 is divisible by 3

A number to be divisible by 5 should have once digit 5 or 0 hence, 1485 is divisible by 5

A number to be divisible by 6 should be divisible by both 2 and 3 hence, 1485 is not divisible by 6.

A number to be divisible by 9 should have their digit sum divisible by 9. The digit sum is 18 hence, the number is divisible by 9.

A number to be divisible by 10 should have 0 on the ones place 1485 is not divisible by 10.

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Answer:

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Step-by-step explanation:

Equations

To solve the problem, we need to recall the area of a trapezium is:

$\displaystyle A=\frac{b1+b2}{2}.h$

Where b1 and b2 are the lengths of the parallel sides and h is the height of the trapezium.

The field to be bought by Mohan has a trapezium shape with a side along the road of side x and a side along the river of side 2x, as stated in the problem.

Knowing the height is h=100 m, and the area is 10500 m2:

$\displaystyle \frac{x+2x}{2}\cdot 100=10500$

Simplifying:

$\displaystyle (3x)\cdot 50=10500$

$150x=10500$

Dividing by 150:

$x = 10500 / 150 = 70$

x = 70 m

2x = 140 m

The length of the side along the river is 140 m

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