Let the speed of the current be x kmph Rate Downstream = (x + 75) kmph According to the question : 150/(x+75) = 1 hour 40 minutes 150/(x+75) = 5/3 hours 450= 5x + 375 5 x = 450 – 375 X= 15 kmph Rate Upstream = 75 – 15 = 60 kmph Required time = 150/60 = 2 hours 30 minutes
What is the average of L, 50, 76, 82, M and N?
I. L is six more than M.
II. N is four less than L.
The question consists of two statements numbered “I and II” given below it. You have to decide whether the data provided in the statements a...
What is the age of Kunal?
Statement I - Four years ago, the age of Kunal was three-fourth his present age.
Statement II - Four years...
A, B and C start a business with an initial investments in the ratio of 4 : 6: 3. Five months after the start of the business, B halves his investment....
The difference between the two digits of a two-digit number is 2. What is the number?
I. The digit at the unit’s place is bigger than the te...
Find the rate percent?
I. The ratio of difference of C.I and S.I for 2 years and 3 years is 19:6.
II. The difference between C.I and S.I o...
The cost price of an article is Rs. 600. How much profit did a trader get by selling the article, if it was sold at 15% discount?
Statement I: ...
What will be the percentage increase in the volume?
Statement I : A cube of ice is dip into 20 litre water
Statement II : If radius of...
What is the circumference of semi-circle (in cm)?
I. Area of the semi-circle is half of the area of a parallelogram.
II. The length of the...
Janaki leaves her home everyday at 7:55 a.m and reaches at 9: 25 a.m. However, one day she left her home at 7:55 a.m. but reached office at 09:20:30 a.m...
