Question
A train 100 metres long, moving at a speed of 50 km per
hour, crosses another train 120 metres long coming from the opposite direction in 6 seconds. What is the speed of the second train?Solution
The correct answer is B
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If a + b + c = 0, then what is the value of a3Â + b3Â + c3Â - 3abc?
One type of liquid contains 15% of benzene, the other contains 20% of benzene. A can is filled with 6 parts of the first liquid and 4 parts of the secon...
The combined Average marks of Boys and girls of a class is 66 and the ratio of number of boys and girls is 3:1 and the average marks of the boys is 68. ...
In a class, 60% of the students are boys, and the rest are girls. If 40% of the boys and 50% of the girls passed an exam, what percentage of the total s...
A luxury watch is originally priced at ₹15,000. During a seasonal sale, the watch is offered at a discount of 30%. After the discount, an additional 1...
Ajay lists an item at 42% higher than its cost price and gives a 20% discount on this marked price. Determine the percentage of p...
A started a business with an investment of Rs.30000. After few months B joined him with an investment of Rs.42000. If at the end of the year, they share...
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