Question
If in a ΔABC, the external angle bisector of angle A,
meets BC when extended at a point D, BD = 5cm , BC = 3 cm then what is AB:AC ?Solution
 
Here CD = BD- BC = 5 - 3 = 2cm, By External angle bisector theorem, AB: AC = BD:CD = 3:2
Rs. ’P’ invested at a rate of 10% p.a. compound interest (compounded annually) amounts to Rs. 7865 at the end of 2 years. Find the simple interest e...
Simplify the following expression: (5x + 7) 2  + (5x – 7) 2 .
The price of wheat per kilogram has decreased by 12%. As a result, a person can now purchase 75 kg of wheat for the same amount of money they previously...
A bag contains 5 pink balls, 10 grey balls, and 3 brown balls. Two balls are drawn at random. Find the probability that the two balls are grey.
Difference between a number and its square root is 42. Find the number.
A and B are travelling towards each other with a speed of 40 km/hr and 50 km/hr. If they started at same time and A covered 20 km less distance than B b...
The difference between the squares of two numbers is 184, and their sum is 46. What is the larger number?
Calculate the difference between the area of a wall having dimension 22 cm X 23 cm and the area of a spherical bowl having diameter 14cm.
Two towns D and E are 456 km apart. A car leaves D at 5:15 a.m. at 57 km/h. Another car leaves E at 6:45 a.m. towards D at 76 km/h. When will they meet?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
Relevant for Exams:
