Question
If the sum of 60% of a fractional number and the
number's square root is 5 greater than one fifth of the number, then the number isSolution
ATQ Let the number be x According to the question, (60/100) × x + √x = 1x/5 + 5 = 0.6x + √x = 0.2x + 5 = √x = 5 - 0.4x Squaring both the sides = x = 25 + 0.16x2 - 4x = 0.16x2 - 5x + 25 = 0 = x = 6.25 and 25 As, number is fraction hence required answer will be 6.25.
A seller purchases pears for Rs. 192 per dozen and sells each for Rs. 20. If he sells 5 dozen pears, how much profit does he earn in total?
If a product is offered two successive discounts of 19% and 20%, what is the equivalent single discount?
The profit percentage of K and L is same on selling the articles at Rs. 48800 each but K calculates his profit on the selling price while L calculates ...
‘A’ and ‘B’ started a business by investing certain sum in the ratio 13:5, respectively for 6 years. If 10% of the total profit is donated in an...
A shopkeeper originally priced an item at 60% above its cost price and then offered a 15% discount before selling it. If the shopkeeper had initially ma...
Two back-to-back discounts of 25% and 20% are equivalent to a single discount of 'd%'. Calculate the value of '2d'
A seller priced a bag of rice 50% higher than its cost price and later sold it after applying a 20% discount. If the profit made by the seller was Rs. 4...
A furniture dealer sold an almirah with a 20% profit margin. Had the dealer purchased the almirah at a cost that was 10% lower and then sold it for an a...
A seller marked his article 60% above the cost price and sold it after offering two successive discounts of 50% and 20% respectively. In the whole trans...
- The cost price of a lamp is Rs. 500. A trader bought 18 such lamps. He sold 8 lamps at 14% profit, 6 lamps at 22% profit and the rest for Rs. 560 each. Det...
