Let speed of downstream and speed of stream be 7x and 2x respectively. Speed of current => 2x = 6 => x = 3 km/hr Downstream speed = 7 × 3 = 21 km/h Speed of boat = 21 - 3 = 18 km/hr Upstream speed = 18 - 3 = 15 km/h Distance travelled upstream in 5 hr = Speed × Time => 15 × 5 = 75 km
P, Q and R together invested an amount of Rs. 55,000 in the ratio of 5:2:4 for different period of time. What was the amount of profit earned ...
Find the rate of interest per annum? Statement I . The CI in 12 years is more than the amount. Statement II . The difference between SI and CI in 3 ...
How many people are there in a Train? Statement I: There are 225 females in the Bus. Statement II: 25% of passengers are males and 15% are childre...
Find the ratio of Ram’s age to Rahul’s age.
Statement I: Ram’s age is equal to Alok’s age and Alok age is 2 years l...
What are the marks obtained by Sushil in Accounts? Statement I: Marks obtained in English is as much more than that in Economics as the marks obtained ...
What is the age of a class teacher?
I. There are 13 students in the class.
II. The average age of students and the teacher is 16 years.
What is the rate of interest per annum ?
I. Difference between CI and SI for 2 years on an amount of Rs. 15,000 at the rate is Rs. 96.
II....
What was the profit earned by selling an article?
Statement I: The article was sold for Rs 850 after getting a discount of 15% on the labelled p...
Is 'x' an even number?
Statement I: 'x' is not divisible by 8.
Statement II: When 1 is added to three times 'x'...
