Question
Quantity I: The price of rice is decreased by 30%, by
how much % the consumption is increase so that the expenditure will decreased by 10%? Quantity II: A man spends Rs. 45,600 out of his income 68,400. If his income and expenditure are increased by 19% and 13%. Find the percentage change in his savings.Solution
Quantity I: Let expenditure = 100    Price = 70    New expenditure = 90 ∴ Required % = (90-70)/70 × 100 = 28*4/7 % 
A was travelling from point X to point Y. He increased his speed by 14 km/h after every hour. He reached his destination in 18 hours. If his initial spe...
The speed of two cars A and B are in the ratio of 13:17 respectively. Car A travels 16 km less than the car B in the same time duration. What was the di...
A train service was disrupted due to an accident after a travel of 30 km. The speed was reduced to three-fourths of the original speed. This caused a de...
A bike covers 60 km with a speed of 20 km/hr. Find the speed of the bike for the next 50 km journey so that the average speed of the whole journey will ...
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 55 m/s. Train Q starts from Dehradun to Lucknow at 1:35 pm with an average ...
The speed of a car is 25% more than that of a bike. Both of them start from a same point. After travelling for 5 hours, the speed of the bike is increas...
The speeds of 'Pawan' and 'Qureshi' are in the ratio of 8:5. If the total time they take to individually cover 400 km each sums up to 65 hours, what is ...
A can walk a certain distance in 11 days when he rests 8 hours a day. How long will he take to walk twice the distance, twice as fast and resting twice ...
- Two bikers ‘C’ and ‘D’ start from towns ‘X’ and ‘Y’ respectively towards each other at the same time. The distance between towns ‘X’ an...
Arjun left a bus stop at 14 m/s. Mohan started chasing him 7 seconds later and overtook him in 28 seconds. What speed was Mohan running at?
