Exams

X and Y started a business investing Rs 12000 and Rs 9000 respectively. After 4 months, X left the business and Z joined the business by investing Rs. 18000. At the end of the year, there was a profit of Rs 12500. What is the share (in Rs) of Z in the profit?

If A : B = 2 : 3 and B : C = 4 : 5, then what is (A + C) : B?

If 30% of 40% of X is 240, then what is the value of X?

In triangle ABC, O is the orthocenter and angle BOC is 120 deg. Calculate angle BAC.

What is the total number of points in the plane of triangle ABC which is equidistant from the vertices of the triangle?

Find the value of 'a' for which x+3x+a24 is a perfect square.

If ab-1b=cb-1c=ac-1a, then ac+ba+cb

Find the unit digit of the expression

312+322+332+342+352+362+372+382+392