Question
A shopkeeper sold three types of books i.e. fiction,
non-fiction, and comics. Number of fiction books sold is 25% of the total number of books sold and the ratio of non-fiction to comics sold is 4:3 respectively. If the difference between the number of fiction books sold and the number of comics sold is 90, then find the number of non-fiction books sold.Solution
ATQ, Let the total number of books sold be '100x' Number of fiction books sold = 0.25 × 100x = '25x' Number of comics sold = (3/7) × 75x = (75x × 3)/7 = 225x/7 Given: 
So, the number of non-fiction books sold: 
The ratio of the speed of boat ‘A’ in still water, the speed of boat ‘B’ in still water and the speed of the current is 11:5:2, respectively. If...
A man row a boat 1 km in 5 min, along the stream and 6 km in 1hrs against the stream, The speed of the stream will beÂ
A boat can travel 12 km more in downstream than that in upstream, in 3 hours while the difference between the time taken by the same boat to travel 180 ...
A boat can cover 60 km in still water and 75 km in downstream in 4 hours and 3 hours respectively. Find the time taken by the boat to cover 60 km upstre...
"A boat covers 66 km upstream and 98 km downstream in a total of 9 hours. Determine the time required for the boat to travel 48 k...
A boat sails 150 km in downstream direction in 5 hours. If the upstream speed is one-third of its downstream speed, calculate the time it will take to c...
The speed of a boat in still water is 45 km/hr, and the speed of the stream is 5 km/hr. The boat takes 30 minutes longer to cover a distance of x km ups...
The time taken by a boat to travel a certain distance downstream is in the ratio 4:5 compared to the time taken to travel the sam...
Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 40 minutes to cover 15 km in downstream, then find th...
A boat takes 34 hours to travel from P to Q upstream and from Q to P downstream. If the speed of the boat in still water is 8.5 km/h and the speed of th...
Relevant for Exams:
