If N:38∷ 3:57, Find N.

The HCF of two numbers is 4 and the two other factors of LCM are 5 and 7. Find the smaller of the two numbers.

In a triangle ΔABC, the sides DE parallel to BC and AD = 6 cm, DB = 9 cm, AE = 8 cm, find the value of AC.

Rs. 2,000 is invested at 10% p.a. on simple interest. If that interest is added to the principal after every 20 years, the amount will become Rs. 14,000 after

₹ 1,000 is invested at 5% per annum simple interest. If the interest is added to the Aprincipal after every 10 years, the amount will become 2,000 after

If in a triangle the circumcentre, incentre, centroid and orthocentre are at the same place, then what will that triangle be like?

The LCM of two numbers is 864 and their HCF is 144. If one of the numbers is 288, the other number is:

The value of x in the given equation
$$ {23 ^2 + \sqrt{x}=625}$$