Question
The salary of Meena is 25% more than Rina’s. Meena
saves 45% of her salary, Rina saves 20%. If their expenditure difference is Rs. 675, how much does Meena save?Solution
ATQ,
Let Rina’s income be Rs. 100n
Meena’s income = 1.25 × 100n = Rs. 125n
Expenditure of Meena = 0.55 × 125n = Rs. 68.75n
Expenditure of Rina = 0.8 × 100n = Rs. 80n
So, 80n - 68.75n = 675
Or, 11.25n = 675
Or, n = 60
Savings of Meena = 125n - 68.75n = 56.25n = 56.25 × 60 = Rs. 3,375
A boat takes a third time to cover a certain distance downstream compared to upstream. What is the ratio of the speed of the boat in still water to the ...
The speed of a motorboat in still water is 25 km/h and the speed of the stream is 5 km/h. The boat first goes 120 km downstream and then covers a certa...
Speed of a boat in still water to speed of boat in upstream is 7:4. If the boat can travel 450 km in downstream in 5 hours, then find the time taken by ...
Speed of a boat in still water is 18 km/h while the speed of the stream is ____ km/h. Total time taken by the boat to go 180 km upstream and 270 km down...
A boat moves 25km upstream and 39km downstream in 8 hours. It travels 35km upstream and 52km downstream in 11 hours. What is the speed of the stream if ...
A boat takes 1/12th time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the curren...
The speed of a boat in still water and the speed of the stream are in the ratio 7:2. If the boat takes 12 hours to travel 240 km upstream, how long will...
The velocity of a vessel in calm waters is 4.5 times the speed of the current. If the disparity between the boat's speed when moving against the current...
The duration needed to travel (x – 36) km upstream equals the time taken to go (2x – 72) km downstream. If the boat’s speed is 10.5 km/h and the c...
The speed of the stream is 14 km/h. Boat ‘A’ covers 130 km distance against the stream in 5 hours and boat ‘B’ covers 100 km distance against th...
Relevant for Exams:
