Question
An individual travels 300 kilometres, part by scooter and
part by bus. The speed of scooter is 40 km/h and the bus is 80 km/h. If the scooter covers 40% of the route, determine the approximate average speed of the entire trip.Solution
ATQ,
Time taken by scooter = (0.40 × 300) / 40 = 120 / 40 = 3 hours
Time taken by bus = (0.60 × 300) / 80 = 180 / 80 = 2.25 hours
Average speed = 300 / (3 + 2.25) = 300 / 5.25 ≈ 57 km/h
A shopkeeper marks the price of an article 40% above its cost price. During a sale, he offers a discount of 25% on the marked price. What is his overall...
A sum of Rs. 46,000 was divided between 'A' and 'B' such that the amount received by 'B' was 30% more than that by 'A'. If 'A' and 'B' spent 10% and 25%...
The earnings ratio of individuals 'P' and 'Q' stands at 5:3, respectively. 'P' manages to save 20% of their income, which is precisely 80% of what 'Q' s...
- Due to a 20% hike in the price of cooking oil, how much should consumption be decreased to keep the total cost the same?Round your answer to the nearest in...
The sum of the monthly incomes of ‘A’, ‘B’ and ‘C’ is Rs. 40000 which is 4 times the monthly income of ‘C’. If ‘A’ spends 30% of his...
- During a college election, two students were in the fray. The one who received 75% of the valid votes won by a difference of 2250 votes. Determine the numb...
- Out of 450 students in a school, 48% are boys. Among the boys and girls, 25% and 30% respectively like drawing. What is the total number of students who do...
A batsman scored 124 runs, which included 6 boundaries and 10 sixes. What percentage of his total score did he make by running between the wickets?
Out of 1200 people in a city, 40% speak Mandarin and the rest speak Cantonese. If out of non-Mandarin speakers, 35% are males and out of Mandarin speake...
- A manufacturer produced a total of 24000 items where 40% of the items were electronic gadgets and the remaining items were household appliances. If 70% of ...
Relevant for Exams:
