Question
John can do a piece of work alone in 20 days, while Ravi
can do the same piece of work alone in 28 days. In how many days can the duo complete the same work if they work together?Solution
The correct answer is C
Find the difference between MP of article A and SP of article B.
I: CP of article A is Rs.224 less than the SP of article B. Discount given on ar...
What is the area of the circular field?
Statement I: The area of the largest square that can be inscribed in the given circular field is 6400 sq...
What is the speed of boat A in still water?
Statement I: Boat A takes 4 hours to travel 48 km downstream, while the speed of the current is 3 km/...
How much time will train A take to cross a platform of length 400 m?
Statement I: Â The train A crosses another train B in 40 seconds.
S...
Find the area of a rhombus.
A. Sum of the squares of the diagonals is 256 m².
B. Perimeter of the rhombus i...
Three friends namely F, G and H are rowing their boats in a same river. Speeds of F and G in still water are 6 km/h more and 4 km/h more, respectively...
How many boys are there in the class?
I. The number of girls is 30% of the number of boys.
II. The ratio of the number of boys to that of girls is 3:5.
What is the present age of Rina?
I. Rina’s present age is `1/10` of her mother’s present age.
II. After 5 years, Rina’s age wil...
What is the principal amount?
Statement I: The Simple Interest obtained on the principal after 3 years at 10% rate of interest is Rs 580 less th...
What is the length of a wooden board of width 6 metres and thickness one-third of the width?
Statement I: Surface area of the board is 152 m².
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