Three persons A, B and C start a venture with capitals ₹ 1,20,000; ₹ 90,000; and ₹ 60,000 respectively. After 4 months A withdraws ₹ 20,000; after 8 months B adds ₹ 30,000. At the end of year the profit is ₹ 2,88,000. Find C's share.

What is average marks obtained by the all students in Hindi?

A certain weight (in kg) is divided into two parts such that 5 times the first part added to 11 times the second part makes 7 times the whole weight. The ratio of the first part to the second part is :

Sum of two numbers is 44 and their difference is 16. The ratio of these number is :

Two bags of iron ore weight 180 kg 250 gm and 270 kg 50 gm respectively. How much iron ore (in gm) must be taken out from the first bag and added to the second bag so that weight of the first bag may then be two-third of the second bag ?

Ankit, Ashish and Arun earned a profit of Rs. 12 lakh from a year from their business. Ankit retained Rs. 6 lakh, while Ashish and Arun each kept Rs. 3 lakh. What is the ratio of their profits from the business?

If $\frac{2a^2 - 3b^2}{a^2 + b^2} = \frac{2}{41}$, then $a : b =$