Question
Mahima’s expenditure and savings are in the ratio 5 :
3. Her income increases by 15%. Her expenditure also increases by 18%. By how many % does he saving increase?Solution
Let expense = 500 , savings = 300 & income = 800 So new expense = 500+ 18% of 500 = 500 + 90 = 590 & new income = 800 + 15% of 800 = 800 +120 = 920 So new savings = 920 – 590 = 330 ∴ Required % increase in savings= (330 – 300 ) /300× 100 = 30 /300×100% = 10%
‘A’ and ‘B’ started moving towards each other at same time with a speed of 27 km/hr and 9 km/hr, respectively. If the dis...
A train covers a certain distance at a speed of 24 km/h and the next same distance with a speed of 42 km/h and the next same distance with a speed of 72...
Train ‘A’ running with a speed of 54 km/hr. can cross a standing goods train of 4 times its length in 20 seconds. Find the time taken by 240 meters ...
Vikas covered a certain distance by bike. If he covers 40% of the distance at 40 km/h, 50% of the distance at 25 km/h and the remaining 10% distance at ...
- The speed ratio of Renu and Meenu is 4:5, respectively. Renu travels a distance of 300 km from point 'A' to 'B', while Meenu covers the same distance but i...
- In a 200-metre race, runner A can give runner B a 20-metre head start and still finish at the same time. Similarly, runner B can give runner C a 10-metre h...
- Nikita covered a total distance of 400 km — partly by airplane at 200 km/h and partly by bus at 80 km/h. If she took 3.5 hours to reach, how many kilomet...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 22 km/hr and 14 km/hr, respectively. If the distance covered by ‘A�...
Ajay and Vishal left the place ‘X’ with different speeds which are in the ratio 9:5 respectively. Ajay left the place 36 seconds after Vishal. If af...
A boy goes to school at 9 km/Hr and return at a speed of 8 km/hr. If he takes 17 hrs in all. Find the distance from his village to school?
Relevant for Exams:
