vvvevebrbebebrhhrg44g

Sir video 

Can u tell in some simple way

Please explain in video 

 the chapter 1 physics on class 10 

How
Tell me

If x is an odd number than the next even number is. ____________

2/3 - 4/5

5 2x

I not understand this question 

Cant  understand

On  comparing the ratio a1/a2, b1/b2 and c1 and c2 find out whether the following pair of linear equations have unique solution infinitely many solution or no solution: 2x-3y=1,3x-2y=3

What are the restrictions of  retained earnings?

Anubha and kajal entered into partnership sharing profits and losses in the ratio of 2:1.their capitals were 90,000 and 60,000.the profit during the year were rs.45,000.according to partnership deed,both partners are allowed salary rs.700per month to anubha and 500 per month to kajal.interest is allowed on capital@5%p.a.the drawing during the period were 8,500 for anubha and 6,500 for kajal.interest is to be charged@5%p.a.on drawings.prepare partners capital account.assuming that the capital account are fluctuating.

How to make partners capital account

Profit on sale of fixed asset will be transfer to which account

But question 3 I don't understand

Find the equation of a straight line through the intersection of lines 7x 3y=10,5x-4y =1 and parallel to the line 13x 5y 12=0

What will be the unit digit of 93