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Let's solve this using the work formula: Work = Men × Days (Assuming same efficiency) Given: 63 men × 30 days = Total work Now, 21 men → how many days? Let the required days = x 63×30=21×x 1890=21x 
The ratio of the cost price to the marked price of an article is 3:5 and the ratio of the profit percentage to the discount percentage is 5:2. Find the...
Profit percentage earned on selling article 'I' is the same as the percentage loss incurred on selling article 'J'. If the cost price of article 'I' is ...
A dishonest shopkeeper makes a cheating of 25% at the time of buying the goods and 37.5% cheating at the time of selling the goods. He promises to sell ...
The cost of a taxi ride from Kolkata to Jaipur is Rs. 400 per person. The bus fare for one person on the same route is one-fourth of the total taxi fare...
On a particular day each of Danny. Edwin and Fahim sold three types of pens from their respective shops. As a coincidence, each of them sold an identica...
A shopkeeper sold a pair of shoes with a 28% discount and earned a profit of Rs. 150. If the cost price of the shoes had been 20%...
The ratio of cost price and selling price of a shirt is 6:7 respectively. The shirt was marked up by 20% above its cost price, and sold after giving Rs....
