Question
Initially, a bag contains t-shirts of two colours (yellow
and green) in the ratio of 7: 15 respectively. If 19 yellow t-shirts and 11 green t-shirts were distributed among employees in a team, and the ratio of yellow, and green t-shirts became 1: 4 respectively, then what is the number of yellow t-shirts in the bag initially?Solution
Let initially, number of yellow t-shirts = 7x and number of green t-shirts = 15x
(7x - 19)/(15x - 11) = 1/4
=> 28x - 76 = 15x - 11
=> 13x = 65
=> x = 5
So, number of yellow t-shirts in the bag initially = 7 * 5 = 35
On reducing the marked price of his goods by ₹28, a shopkeeper gains 20%. If the cost price of the article be ₹560 and it is sold at the marked pric...
How much soda should be mixed with 20 kg of sugar cost Rs.30/kg so that a gain of 20% can be made after selling the mixture at Rs.24/kg?
A milk vendor has 93 litres of cow pure milk, 62 litres of toned milk and 124 litres of double toned milk. If he wants to pack them in cans so that each...
In what ratio must a person mix three kinds of rice costing him Rs 1.16,Rs 1.40 and Rs 1.72 per Kg so that the mixture may be worth Rs 1.37 per Kg?
A, B and C alone can complete a work in 20, 30 and 25 days respectively. All of them started working together but after 4 days from start A left the job...
In the Reebok factory, there are two units of workers, I and II, with a strength ratio of 2:1. The ratio of male to female in Unit I is 3:1, and in Unit...
A solution contains 30L of pure milk. 10% of his this is taken out. Another 15% of the remaining solution is taken out and finally 20% of the contents ...
The cost price of a rice bag is 40% of the cost price of a sugar bag. The rice bag is sold at a 60% profit, while the sugar bag i...
What distance will a wheel with a radius of 14 cm cover after completing 10 revolutions?
Pipe ‘A’ can fill a tank in 16 hours whereas leak ‘A’ can empty it in 20 hours. If they both operate along with pipe ‘B’, then the given tan...
