Question
A motor car travels a distance of 180 km at the speed of
20 kmph. If it covers the next 100 km of its journey at the speed of 20 kmph and last 40 km of its journey at the speed of 20 kmph. What is the average speed of the car?Solution
D 1= 180 Km, S1= 20 Km/hr, D2= 100 Km, S2 = 20 Km/hr, D3= 40 Km, S3= 20 km/hr. T1 = Distance/Speed = 180/20 = 9hr T2 = Distance/Speed = 100/20 = 5hr T3 = Distance/Speed = 40/20 = 2hr Average speed = Total distance/Total time = 320/16 = 20 km/hr
The table below shows the number of students in different streams of a college:
Shopkeeper F sells 70% more black pens than that of shopkeeper A. If F sold 2/3rd Red pens out of his total sales then find the total pens sold.
In 2020, the number of medals won by players from Country B was what percentage of the total number of medals won by players from all three countries i...
On Thursday, difference between time taken by the boat to cover βXβ km upstream and (X+100) km downstream is 20 hours. Had the boat covered same dis...
Study the information given below and answer the following question.
The sales of a shop for 5 days are:
If 20% of students disqualified for the exam from city A in 2018 and 26% from city D in 2019, then how many students had been disqualified for the exam ...
Find the ratio of the number of Cello water bottles sold by shop D to the total number of Milton water bottles sold by shop A.
Study the given graph and answer the question that follows.
οΏ½...Find the ratio of Umbrella sold in cities E and F together to Raincoat sold in cities C and D together.
Find the difference between the number of Oranges sold by E and number of Apples sold by B.
Relevant for Exams:
