Question
A man travelled a total distance of 200 km. He travelled
first 150 km on car with a speed of 30 km/h and rest of the distance on bike whose speed is 20 km/h less than that of the car. Find his average speed for the whole journey.Solution
Total time taken to cover the whole journey = 150/30 + 50/10 = 5 + 5 = 10 km Desired average speed = 200/10 = 20 km/h
Marked price of an article is Rs.1200 more than the cost price. When the same article is sold at a discount of Rs.200, the profit percent earned is 25%....
Select the letter-cluster from among the given options that can replace the question mark (?) in the given series.
 DXC, GTH, ?, MLR, PHW
Three bells ring at intervals of 28 seconds, 60 seconds, and 84 seconds, respectively. How many times will all three bells ring together in a span of 10...
An article is initially marked at 40% above its cost price. It is then sold after applying two successive discounts - one of 12% and another of Rs. 56. ...
A piggy bank holds 10-paise, 20-paise, and 50-paise coins in the ratio of 17:19:8. If the total value of all the coins combined is Rs. 2280, determine t...
A question and two statements labeled (I), (II) are given. You have to decide which statement(s) is/are sufficient to answer the question.
Gowth...
If '+' means '-' , '-' means 'x' , 'x' means '÷' , '÷' means '+' , then what will be the value of ' 67 ÷ 28 + 600 x 50- 10 ' = ?Â
...A circular field has a circumference of 264 meters. Calculate the area of this field. {Take π = (22/7)}
A shopkeeper sets the selling price of an item higher than its cost price. After offering a 4% discount, the shopkeeper earns a 20% profit. What percent...
An initial investment grows to four times its original amount in 6 years under compound interest. How many years will it take for the investment to grow...