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P’s one day’s work = 1/48days Q’s one day’s work = 1/60days R’s one day’s work = 1/80days Then, (x -12)/48 + (x - 16)/60 + (x )/80 = 1 (5(x-12)+4(x-16)+3x)/240 = 1 5x – 60 + 4x – 64 + 3x = 240 12x = 240 + 124 12x = 364 x = 364/12 x=91/3 ∴x = 30(1/3) days
Ratio of the number of pens with Sumit, Rohan, Chetan, Dheeraj and Gagan is 2 : 3 : 4 : 5 : 6 respectively. If two of them have more than 20% of the tot...
A chemist combines three solutions with active ingredient concentrations of 10%, 20%, and 30% in the ratio 2:3:5. If the total volume of the mixture is ...
In a mixture 'P', the ratio of milk to water is 7:5. In another mixture 'Q', the ratio is 1:2. If 72 litres of P and 54 litres of Q are mixed, find the ...
Raju and Ramesh started a business with investing capital in the ratio of 9:16. After 5 months, Raju reduced his 1/3 portion of the capital and after 8 ...
By mistake, instead of dividing Rs. 564 among P, Q and R in the ratio 1/3 : 1/4 : 1/5 it was divided in the ratio of 3 : 4 : 5. Who gains the most and b...
Radius of base of a hollow cone is 8 cm and its height is 15 cm. A sphere of largest radius is put inside the cone. What is the ratio of radius of base ...
A bag contains 10-paisa, 20-paisa and 50-paisa coins in the ratio of 5:8:7, respectively. If the total amount in the bag is Rs. 35, then find 40% of the...
The cost of diamond varies directly as the square of its weight. A diamond broke into four pieces with weights in the ratio 1 : 4 : 5 : 6. if the loss i...
A bag contains 20 rupees note, 50 rupees note and 100 rupees note in the ratio 5:7:2. If the total amount in the bag is Rs 2,600, find the average numbe...
A sum of Rs. 2,100 is distributed among three persons P, Q, and R in the ratio 3:2:5. If the same sum had been distributed in the ratio 5:2:3, then how ...