If the sum of the product of the deviation of X and Y from their means is zero, the correlation coefficient between X and Y is:
In a business, A invested Rs. 1500 more than that by B. After 10 months, A left the business. If at the end of the year, profit earned by B is equal to ...
The contributions made by A and B are in the ratio of 6:5. If 12% of total profit is donated and A gets 1320 as his share of profit, what is the total p...
Aman, Bhanu, and Chetna joined a business, investing Rs. 1200, Rs. 1600, and Rs. 'r', respectively. After 6 months, Aman, Bhanu, and Chetna increased th...
A and B together starts a business with investment of Rs. 800 and Rs. (x + 600), respectively. If the profit earned after 5 years is Rs.3200 and share o...
Aman, Baman and Chaman started a business with investments of 10000, 1500 and 2000 respectively. After 9 months from start of the business , Baman and C...
A, B and C invested in partnership. A invest Rs.10000 for 4 months, B invests Rs.8000 for 3 months and C invests Rs.14000 for 2 months. C is working par...
If a sum of money is to be divided among A, B, C such that A’s share is equal to twice B’s share and B’s share is 5 times C’s share then their s...
‘A’ started a business with the investment of Rs. 12000. After ‘x’ months and after 3 months from starting ‘B’ and &...
P and Q together started a business with initial investment in the ratio of 1:13, respectively. The time-period of investment for P and Q is in the rati...
A and B entered into a business investing their capital in the ratio of 14:25, respectively and the respective ratio of time for which they made their i...
