The random errors associated with the measurements of P and Q are 10% and 2%, respectively. What is the percentage random error in P/Q?

• 12.0

• 9.8

• 8.0

• 10.2

In how many distinguishable ways can the letters of the word CHANCE be arranged?

• 120

• 720

• 360

• 240

Find out the missing pattern.

Seeds when soaked in water gain about 20% by weight and 10% by volume. By what factor does the density increase?

• 1.20

• 1.10

• 1.11

• 1.09

Retarding frictional force, f, on a moving ball, is proportional to its velocity, V. Two identical balls roll down identical slopes (A and B) from different heights. Compare the retarding forces and the velocities of the balls at the bases of the slopes.

• f_A > f_B; V_A > V_B

• f_A > f_B; V_B > V_A

• f_B > f_A; V_B > V_A

• f_B > f_A; V_A > V_B

6.

Two cockroaches of the same species have the same thickness but different lengths and widths. Their ability to survive in oxygen-deficient environments will be compromised if

• their thickness increases, and the rest of the size remains the same.

• their thickness remains unchanged, but their length increases.

• their thickness remains unchanged, but their width decreases.

• their thickness decreases, but the rest of the size remains unchanged.

The bar chart shows the number of seats won by four political parties in the state legislative assembly.

Which of the following pie-charts correctly depicts this information?

Intravenous (IV) fluid has to be administered to a child of 12kg with dehydration, at a dose of 20 mg of fluid per kg of body weight, in 1 hour. What should be the drip rate (in drops/ min) of IV fluid? (1 mg = 20 drops)

• 7

• 80

• 120

• 4

A hall with a high roof is supported by an array of identical columns such that, to a person lying on the floor and looking at the ceiling, the columns appear parallel to each other. Which of the following designs conforms to this?

Which of the following graphs correctly shows the speed and the corresponding distance by an object moving along a straight line?