X, Y and Z constitute a random sample of size 3 from normal population with the mean µ and variance α2, find the efficiency of (X+2Y+3Z)/5
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...
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...
The marked price of a watch is Rs 3,025. The shopkeeper allows a discount of 20% and gains 25%. If no discount is allowed, what would his gain percent be?
The profit earned in selling an article for Rs.2540 is equal to the loss incurred in selling at Rs.1850. What is the cost price?
A shopkeeper buying an item for Rs 6000 and marked it up by 33.33%. He vend it after giving two consecutive discounts of 20% and Rs 200 respectively. Ha...
A shopkeeper purchased two rice bags, 'Brown Rice' and 'Basmati,' and sold them at identical prices. The bag of 'Brown Rice' was sold with a 20% profit,...
A shopkeeper purchased three items 'X', 'Y', and 'Z' at the same price. He sold item 'X' at a 10% profit, item 'Y' at a 15% loss, and item 'Z' at a 30% ...
The cost price of an article is Rs. 2335 and a shopkeeper wants to earn 12% profit on it after giving 20% discount on marked price. Find the marked pric...
A shopkeeper marked an article ‘A’ 28% above the cost price and sold it for Rs. 8064 after giving a certain discount while he sold an article ‘Bâ€...
Cost price of a bag is Rs.820. The shopkeeper marked it 60% above the cost price and sold it after giving a discount of 25%. If the shopkeeper had sold ...
