Between which two consecutive integers does $\sqrt{290}$ lie?
17 and 18
The question asks us to identify the two consecutive integers between which the value of $\sqrt{290}$ lies. To solve this, we need to find an integer $n$ such that $n < \sqrt{290} < n+1$. An equivalent way to think about this is to find an integer $n$ such that $n^2 < 290 < (n+1)^2$.
We can estimate the value of $\sqrt{290}$ by finding the squares of integers. We are looking for two perfect squares that surround the number 290.
Let's calculate the squares of integers to find the range:
| Integer ($n$) | Square ($n^2$) | Comparison with 290 |
|---|---|---|
| 15 | $15^2 = 225$ | $225 < 290$ |
| 16 | $16^2 = 256$ | $256 < 290$ |
| 17 | $17^2 = 289$ | $289 < 290$ |
| 18 | $18^2 = 324$ | $324 > 290$ |
From the calculations above, we observe that:
Since 290 is greater than 289 (which is $17^2$) and less than 324 (which is $18^2$), we can write the inequality:
$17^2 < 290 < 18^2$
Taking the square root of each part of the inequality, we get:
$\sqrt{17^2} < \sqrt{290} < \sqrt{18^2}$
$17 < \sqrt{290} < 18$
This shows that $\sqrt{290}$ lies between the consecutive integers 17 and 18.
Therefore, $\sqrt{290}$ lies between the consecutive integers 17 and 18. This corresponds to option 3.
The product of 2 numbers is 1530 and their HCF is 15, then their LCM is
Replace the question mark (?) in the following number series with suitable option.
$3, 3, 4.5, 9, 22.5, ?$
If you subtract $\frac{1}{2}$ from a number and multiply the result by $\frac{1}{2}$, you get $\frac{1}{8}$. The number is