Get Started with ixamBee
Start learning 50% faster. Sign in now
ATQ;
Let the present age of ‘Simran’ = ‘x’ years
Present age of ‘Riya’ = ‘5x’ years
ATQ;
5x + 8 = 2 × (x + 8)
Or, 5x + 8 = 2x + 16
Or, 3x = 8
Or, x = 8
So, present age of ‘Riya’ = 5 × x = 5 × 8 = 40 years
The chemical name of'Common salt’
The noble gas used in radiotherapy is
Bronze is an alloy of-
The acid used in lead storage cells is-
The important ore of aluminium is-
The gas used for filling weather balloons is-
The fuel that is used in modern submarines is -
Which of the following is a physical change?
The gas usually causing explosions in coal mines is-
Which one amongst the following is not a Green House gas?