The monthly incomes of Peter and Paul are in the ratio of $4:3$. Their expenses are in the ratio of $3:2$. If both save Rs. 6000 at the end of the month, their respective monthly incomes are:

Each of A, B, C, and D has Rs. 100. A pays Rs. 20 to B, who pays Rs. 10 to C, who gets Rs. 30 from D. In this context, which one of the following statements is not correct?

Consider the following matrix:

What is the missing number at ‘?’ in the matrix?

A selection is to be made for one post of Principal and two posts of Vice-Principal. Amongst the six candidates called for the interview, only two are eligible for the post of Principal while they all are eligible for the post of Vice-Principal. The number of possible combinations of selectees is:

Two cities, A and B, are 360 km apart. A car goes from A to B at a speed of $40$ km/hr and returns to A at $60$ km/hr. What is the car's average speed?

Two equal glasses of the same type are respectively $\frac{1}{3}$ and $\frac{1}{4}$ full of milk. They are then filled up with water and the contents are mixed in a pot. What is the ratio of milk to water in the pot?

A person ordered 5 pairs of black socks and some pairs of brown socks. The price of a black pair was thrice that of a brown pair. While preparing the bill, the bill clerk interchanged the number of black and brown pairs by mistake which increased the bill by 100%. What was the number of pairs of brown socks in the original order?

A father is nine times as old as his son and the mother is eight times as old as the son. The sum of the father’s and the mother’s age is 51 years. What is the age of the son?

Two pipes A and B can independently fill a tank completely in 20 and 30 minutes respectively. If both the pipes are opened simultaneously, how much time will they take to fill the tank completely?

In a test, a candidate attempted only 8 questions and secured 50% marks in each of the questions. If he obtained a total of 40% in the test and all questions in the test carried equal marks, how many questions were there in the test?

Shahid and Rohit start from the same point in opposite directions. After each 1 km, Shahid always turns left and Rohit always turns right. Which of the following statements is correct?

In a society, friends of the same sex hug while friends of opposite sexes shake hands. A group of friends met at a party, resulting in 24 handshakes. What is the possible number of hugs?

In a town, 45% of the population read magazine A, 55% read magazine B, 40% read magazine C, 30% read magazines A and B, 15% read magazines B and C, 25% read magazines A and C, and 10% read all three magazines. What percentage do not read any magazine?

A cow costs more than 4 goats but less than 5 goats. If a goat costs between Rs. 600 and Rs. 800, what is the most valid conclusion?

In a 500-meter race, B starts 45 meters ahead of A, but A wins the race while B is still 35 meters behind. What is the ratio of the speed of A to B assuming that both start at the same time?

Between 6 PM and 7 PM, the minute hand of a clock will be ahead of the hour hand by 3 minutes at:

In a parking area, the total number of wheels of all the cars (four-wheelers) and scooters/motorbikes (two-wheelers) is 100 more than twice the number of parked vehicles. The number of cars parked is: