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From a rectangular cardboard sheet of length 46 m and breadth 8 m, three circular plates of radii 3 m, 2 m and 1 m are cut out. If the area of the remaining part of the cardboard sheet is equal to the area of a square, then find the length of each side of the square use .

In hot climate regions, the outer walls of the house are preferred to be white in colour because .

Convert 1 kilowatt hour kW h into joule.

A fruit seller initially had some apples. He sold 40 of those and still had 300 apples. How many apples did he initially have?

Ten people are sitting in two parallel rows with five people each in such a way that there is equal distance between adjacent persons. In row I, A, B, C, D and E are seated and all of them are facing south. In row II, R, S, T, U and V are seated and all of them are facing north. Thus each person faces another person from the other row. A sits at the extreme right end of their row and is facing U. R sits at the centre of their row and is facing C. E sits between C and D and is facing T. S sits at the extreme right end of their row. Who sits exactly opposite B?

Which of the following is the safest method for disposing of toxic dust?

What is the total circuit resistance if it contains resistors 10, 20 and 60, connected in parallel?

What should come in place of the question mark ? in the given alpha-numeric series? G5, I10, L15, N20, Q25, S30, ?

Find the value of x2 − y2, given the following.

Which of the following relations is NOT correct?