A number consists of two digits and the digit in the ten's place exceeds that in the unit's place by 5. If 5 times the sum of the digits be subtracted from the number, the digits of the number are reversed. Then the sum of the digits of the number is:

If the circumference of a circle increases from 4π to 8π, what change occurs in its area?

In ∆ABC, AD is the internal bisector of ∠A, meeting the side BC at D. If BD = 5 cm, BC = 7.5 cm, then AB : AC is 

The length of the intercept of the graph of the equation 9x – 12y = 108 between the two axes is 

In a triangle ABC, ∠ABC = 75⁰ and ∠ABC = π⁰/4, The circular measure of ∠BAC is :

A sum of ₹340. 68 is distributed among L, M and N such that L gets ₹ 5.72 more than N and M gets ₹2.24 more than L, N gets

The marked price of an article is 10 % higher than cost price. A discount of 10 % is given on marked price. In this kind of sale, the seller bears: 

The greatest number less than 1500, which is divisible by both 16 and 18, is: