We know that, Average = Sum of all quantities/number of quantities Average of 7 numbers = 28 ∴ Sum of all numbers = 28 × 7 = 196 Average of first 3 numbers is 23. Sum of first 3 numbers = 3 × 23 = 69 Average of last 3 numbers os 42. Sum of last 3 numbers = 3 × 42 = 126 4th number = 196 – 69 – 126 = 1
A dishonest seller, at the time of selling and purchasing uses weight 20% less and 20% more per kg respectively and marks up the price of his goods by 3...
Mohan sold two items at Rs. 9,100 each. On the first item, he made a profit of 30%, while on the second, he incurred a loss of 30%. Calculate the differ...
A dishonest dealer professes to sell his goods at cost price, but he uses a weight of 700 gm for the kg weight. Find his approximate gain per cent.
...A shopkeeper marked an article P% above its cost price and sold it for Rs. 1600 after giving a discount of 20%. If the shopkeeper had a loss of 8% on th...
‘A’ and ‘B’ started a business by investing Rs.7500 and Rs. 9000, respectively. 4 months later, ‘C’ joined them with...
A digital wall clock is labeled with a price that is 75% higher than its cost price, resulting in the marked price being Rs. 1,800 more than the cost pr...
A and B together started a business with initial investment in the ratio of 3:5, respectively. The time-period of investment for A and B is in the ratio...
A shopkeeper bought 60 kg of apples at ₹80 per kg and 40 kg of oranges at ₹60 per kg. If he wants to make a profit of 20% on the total cost, at what...
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...
Rani bought a refrigerator for 15,500 and sold it to Sony at a loss of 12%. Sony spent 3,360 on its repairs and sold it to Roja at a price that would ha...
