CSIR NET 2022 || General Aptitude || Numerical Ability (14.02.2022)

If the length, breadth and height of a room are 20 m, 25 m and 35 m, respectively, then what will be the total surface area of the four walls of the room?

If the HCF and LCM of two numbers are 8 and 160 respectively, then the sum of the numbers is:

In the question there are two statements, Select the most appropriate option based on the information given in these statements.

What is G.?

Statement 1: G² = 64

Statement 2 : G (G - 8) = 0

In the given figure, triangle ABC is similar to triangle APQ. Then find the value of AC, if AP = 2.8cm, PQ = 4cm and BC = 8cm?

A boat travels 5 km upstream and then comes back in 5 hrs. If the speed of the boat is 1.5 times the speed of stream, calculate the speed of the boat.

Two unbiased dice are thrown simultaneously. What is the probability that the sum of numbers appearing on the dices is at least 10?

For 6 numbers, the average of first five numbers is 31 and the average of last five numbers is 34. Find the difference between the last and first number.

A postmaster wants to get delivered eight letters at eight different addresses. In the post office there are 2 postmen then in how many ways can the postmaster send the letters at different addresses through the postmen?

If x_i|f_i, i = 1, 2, ……n is a frequency distribution with standard deviation 8 and mean 32. the coefficient of variation will be equal to:

Find the value of X if

Sin (5X – 7) = Cos (3X – 15)