Question
A and B are solutions of acid and water. The ratios of
water and acid in A and B are 4:5 and 1:2, respectively. If x litres of A is mixed with y Litres of B, then the ratio of water and acid in the mixture becomes 8:13. What is x:y ?Solution
Taking the ratio of water and acid in A and B in the equal unit, Ratio of water and acid in A = 4 ∶ 5 Ratio of water and acid in B = 3 ∶ 6 Ratio of water and acid in the mixture = (4x + 3y)/(5x + 6y) ⇒ (4x + 3y)/(5x + 6y) = 8/13 ⇒ 52x + 39y = 40x + 48y ⇒ 12x = 9y ⇒ x/y = 9/12 ⇒ x/y = 3/4 ∴ The ratio of x and y is 3 ∶ 4
Which among the following is not appointed by the President of India?
Until when is the overarching scheme "PRITHvi VIgyan (PRITHVI)" of the Ministry of Earth Sciences approved for implementation?
As per the World Gold Council data, which country holds the second-largest official gold reserves in the world?Â
Which among the following is INCORRECT about the salient features of the 73rd Amendment Act?
In India, appointments of persons other than district judges to the judicial service of a State are made by the _________.
Who among the following was the first elected King of the Pala Dynasty in Kamarupa?
Which is NOT a Fundamental Duty?
Certiorari comes under the:
Indian currency notes are printed in which place?
The 'Centre of Jain Manuscriptology' established at Gujarat University is funded by the Ministry of Minority Affairs with how much budget?
Relevant for Exams:
