Tell what is the profit or loss in the following transactions. Also find profit percent or loss precent in each case: A cupboard bought for Rs. 2,500 and sold at Rs3,000.

Tell what is the profit or loss in the following transactions. Also find profit percent or loss percent in each case: A skirt bought for Rs250 and sold at Rs150.

Tell what is the profit or loss in the following transactions. Also find profit percent or loss precent in each case: A refrigerator bought for Rs12,000 and sold at Rs13,500.

Find the zero of the polynomial in each of the following cases. P(x)=3x-2

Find the amount to be paid at the end of 3 years in each case: Principal=rs7,500 at 5%p.a.

Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method : Meena went to a bank to withdraw Rs. 2,000. She asked the cashier to give her Rs. 50 and Rs. 100 notes only. Meena got 25 notes in all. Find how many notes of Rs. 50 and Rs. 100 she received.

From the pair of linear equations for the following problems and find their solutions by substitution method. The coach of cricket team buys 7bats and 6balls and Rs 3800. Later, she buys 3 bats and 5 balls for Rs 1750. Find the cost of each bat and each ball.

From the pair of linear equations for the following problems and find their solution by substitution method. The coach ofa a cricket team buys 7 bats and 6 balls for Rs. 3800. Later, she buys 3 bats and 5 balls for Rs. 1750. Find the cost of each bat and each ball.

Find the amount to be paid at the end of 3 years in each case: Principal=Rs1,200 at 12%p.a.

Find the local maxima and local minima. If any of the following function. Also, find the local maximum and the local minimum values, as the case may be as follows: (v) f(x) = x^(3) - 6x^(2) + 9x + 15