Harish bought 15 pieces of DVD players @ Rs 4,500 each and sold all of them at the total price of Rs 81,000. What is the percentage profit earned in the deal?

Prathik sold a music system to Karthik at 20% gain and Karthik sold it to Swasthik at 40% gain. If Swasthik paid Rs 10,500 for the music system, what amount did Parthik pay for the same?

In a college election fought between two candidates, one candidate got 55% of the total valid votes. 15% of the votes were invalid. If the total votes were 15,200, What is the number of valid votes the other candidate got?

There are two numbers such that the sum of twice the first number and thrice the second number is 300 and the sum of thrice the first number and twice the second number is 265. Which is the larger number?

The average monthly income of a family of four earning members was Rs 15,130. One of the daughters in the family got married and left home, so the average monthly income of the family came down to Rs 14,660. What is the monthly income of the married daughter?

Excluding the stoppages, the speed of a bus is 64 km/hr and including the stoppages the speed of the bus is 48 km/hr. For how many minutes does the bus stop per hour?

The cost of 5 pendants and 8 chains is Rs 1,45,785. What will be the cost of 15 pendants and 24 chains?

On a test consisting of 250 questions, Jassi answered 40% of the first 125 questions correctly. What percent of the other 125 questions does she need to answer correctly for her grade on the entire exam to be 60%?

Swapnil, Aakash and Vinay begin to jog around a circular stadium. They complete their revolutions in 36 seconds, 48 seconds and 42 seconds respectively. After how many seconds will they be together at the starting point?

A, B, C, D and E are five consecutive odd numbers. The sum of A and C is 146. What is the value of E?

If blue means green, green means black, black means white, white means pink, pink means red and red means orange, then what is the color of blood?