Student Questions

Pawan wants to plant 48 onion plants and 32 cabbage plants in his vegetable garden. What is the greatest number of rows possible if each row has the same number of onion plants and the same number of cabbage plants?

Two cyclists start cycling on a circular track from the same point but in opposite directions. One completes a round in 40 seconds and the other in 30 seconds. After how many seconds will they meet at the starting point?

A boy is flying kite. Which season is this ?

What is the other name for zebra crossing?

Birds are able to fly while we humans can't fly. This is because the birds have less weight than humans. Why is their weight less?

Which animal has 4 legs and a beak like a duck ?

A rectangular wooden block has a weight of 40 N. The dimensions of the block are 20 cm x 10 cm x 5 cm. The block is placed on a table in two different ways: Position A: Lying on its widest face (20\text{ cm} \times 10\text{ cm}). Position B: Standing on its narrowest face (10\text{ cm} \times 5\text{ cm}). Calculate the pressure exerted by the wooden block on the table in both positions. In which case is the pressure higher, and why?

In a circle with center O, AB is a diameter. Let C be a point on the circumference such that \angle ABC = 30^\circ. A tangent is drawn to the circle at point C, which intersects the extended diameter AB at point P. If the radius of the circle is r, what is the area of triangle BCP?

Δ x 7 = 7 + 7 + 7 + 7 Then what is the value of Δ x 6 ?

4(x-3)=2x+22 Find the value of x.

Consider the following statements and choose the correct option: (1) The mass of 15 moles of H? is 30 g. (2) The number of moles present in 128 g of O? is 4.

Which of the following options, when unscrambled, gives the names of the homes of a bird and a dog?

Read the conversation and choose the correct modes of communication X and Y. Alex: My uncle sent a wedding invitation by X so that it reaches me on time. Ben: I received Y from the bank today and sent my documents through Y again.

In research, it is proved that in old age one should take more quantity of proteins in the diet than any other group of food. Which of the following justifies this?

Read the following statements: (1) The muscles of the heart are voluntary muscles. (2) The ear lobes and lips do not have bones. (3) The spinal cord along with the brain forms the main part of the nervous system. (4) The elbow and knee have ball and socket joint. Which of the above statements is/are incorrect?

Consider the following statements: (1) The formation of dew is a physical change. (2) The explosion of bombs is an endothermic process. (3) Dissolution of common salt can be reversed by heating. Which of the above statements is/are correct?

An iron ball at 49�C is dropped in a beaker containing water at 409.19 K. Identify the correct statement regarding the heat flow.

A sharp knife enables us to cut through things more easily because __________________.

Fill in the blank using an appropriate word: I have ________ pair of shoes.

Fill in the blank using the correct punctuation mark: Are you feeling well today ___