Question

a number rounded to the nearest hundred thousand is 4000 the same number rounded to the nearest ten thousand is 350000 what could be the number

Answer 1

A number is rounded to the nearest hundred thousand and we get 400,000 as result.

That means that the number is bigger than 350,000 (if not, the rounded number would have been 300,000) and smaller than 450,000 (if not, the rounded number would have been 500,000).

We also know that the number rounded to the nearest ten thousand is 350,000.

Then, the number should be between 349,500 and 350,500.

Let X be the number.

Combining the two pieces of information we get:

X > 350,000

X< 450,000

X > 349,500

X< 350,500

Then, 350,000 < X < 350,500.

The number has to be between 350,000 and 350,500.

On one shelf of the school library 1/2 a books are about sports Joyce's that 3/4 of the sports books are about basketball what fraction of the books on the Shelf are about basketball.

We know that half of the books are about sports, and from this half, 3/4 are about basketball.

Then, to know what fraction of the shelf books are about basketball, we have to multiply both fractions:

`(1)/(2)\cdot(3)/(4)=(3)/(8)`

Then, 3/8 of the books are about basketball.