Question
I. 64x2 - 64x + 15 Â = 0 Â Â Â Â II.
21y2 - 13y + 2Â =0 In the following questions, two equations numbered I and II are given. You have to solve both the equations and find out the correct option. Give answer ifÂSolution
I. 64x2Â - 64x + 15 Â = 0 64x2Â - 24x - 40x + 15 = 0 8x (8x - 3 ) - 5 ( 8x - 3 ) = 0Â Â (8x - 5 ) ( 8x - 3) = 0 x = (3/8), (5/8) II. 21y2 - 13y + 2 Â =0 21y2 - 7y - 6y + 2 = 0 7y ( 3y - 1 ) -2 ( 3y - 1 ) = 0 y = (2/7), (1/3) Hence, x > y.
Article A is sold at a loss of 33.33% of its selling price, and Article B is sold at a profit of 40% of its cost price. Both articles are sold for the s...
- Tina bought a television for Rs. (4800 + x). She sold it to Mehul at a profit of 8%. Mehul sold it to Aarav at a profit of 18%, and Aarav sold it to Rohan ...
A school bag is sold for Rs.540 after giving two successive discounts of 10% and 20%. If school bag is marked up by Rs.500 above its cost price, then fi...
- The cost of a taxi ride from Mumbai to Pune is Rs. 700 per person. The bus fare for one person on the same route is one-third of the total taxi fare for 6 ...
Ajay and Vijay sold their Bikes at Rs 48400 each but Ajay incurred a loss of 20%, while Vijay gained 10%. What is the ratio of the cost price of the Bik...
Profit percentage received on a product when sold for Rs. 650 is equal to the percentage loss incurred when the same product is sold for Rs. 330. Find t...
A man sold 30 articles for ₹100 and gained 20%. The number of articles he bought for ₹100 was:
The marked price of a cap is Rs. ‘x’. Rekha bought it at 20% discount and then sold it for Rs. ‘x’. Find the profit earned by her.
A wholesaler buys 200 packets of biscuits for ₹15,000. During transportation, 15% of the packets get damaged and cannot be sold. If he wants to make a...
A trader marked an article 70% above its cost price and sold it after allowing a discount of 40%. If the transaction resulted in a profit of Rs. 40, the...
Relevant for Exams:
