Q&Answers: Math/Chemistry/Physics Problems + Solutions

In the sequence 1, 2, 4, 8, 16, 32, …, each term after the first is twice the previous term.

The speed of a boat in still water in 42 km/hr and the rate of current is 3 km/hr.

If (-3)^(2x) = 3^(12 - x) and x is an integer, what is the value of x ?

In an election between two candidates first candidate got 70% of votes polled and second Candidate got 270 votes.

In a business, A and C invested amounts in the ratio 2 : 1 , whereas the ratio between amounts invested by A and B was 3 : 2 .

Get Answer

Right triangle ABC is to be drawn in the xy-plane so that the right angle is at A and AB is parallel to the y-axis.

Get Answer

How many pairs (n, n+1) have one or more prime factors common, where n is an integer and 2 ≤ n ≤9 ?

Get Answer

If (x+3)^2/(3x+5)=2, then the difference between the two possible values of x is:

Get Answer

If cost of 18 eggs be 75 rupees, then find out the cost of 5 dozen eggs.

Get Answer

The sum of two numbers is 64, and one of them is 12 more than the other.

Get Answer

The average of 6 numbers is 6.8.

Get Answer

In a rectangular coordinate system, if a line passes through the points (-13,-18), (17,22) and (x,2) then what is the value of x?

Get Answer

If the volume of two cubes are in the ratio 27:1, the ratio of their edges is:

Get Answer

If ab + c = a(b + c), which of the following must be true?

Get Answer

A jeep takes 6 hours to cover a distance of 540 Km. how much should the speed in Kmph be maintained to cover the same direction in 3/2th of the previous time?

Get Answer

X can do a piece of work in 40days.

Get Answer

On the number line, if x is halfway between -4 and 4, and if y is halfway between -2 and 6, what number is halfway between x and y?

Get Answer

Mary's income is 60 percent more than Tim's income, and Tim's income is 50 percent less than Juan's income.

Get Answer

A software programmer does 20% of the work in 80% of the time, and 80% of the work in the remaining 30% of the time.

Get Answer

How many cubes of 50 cm edge can be put in a cubical box of 1 m edge.

Get Answer

In a division sum, the remainder is 6 and the divisor is 5 times the quotient and is obtained by adding 2 to the thrice of the remainder.

Calculate Answer

If 40 honey bees make 40 grams of honey in 40 days, then 1 honey bee will make 1 gram of honey in how many days?

Calculate Answer

A and B can do a work in 20days, B and C can do it in 30days; A,B and C together can finish it in 40days.

Calculate Answer

A, B, C, D and E are ve consecutive odd numbers The sum of A and C is 146.

Calculate Answer