1500 bottles were produced in a factory at Hridapur. Now 1695 bottles are produced there. Let's work out the percentage of increase of production in that factory.

The length of a rectangle is increased by 15% and the breadth is reduced by 15%. Let’s work out in percentage the increase or decrease of area.

The number of bicycles produced in the year 2012 and in the year 2015 are 80000 and 92610 respectively. Then find the rate of increase of production in percentage per annum.

A computer producing factory has only two plants T_(1) and T_(2). Plant T_(1) produces 20% and plant T_(2) produces 80% of the total computers produced in the factory turn out to be defective. It is known that P (computer turns out to be defective givent that it is produced in plant T_(1)) = 10 P ( computer turns out to be defective given that it is produced in plant T_(2)), where P (E) denotes the probability of an event E. A computer produced in the factory is randomly selected and it does not turn out to be defective. Then the probability that it is produced in plant T_(2) is

When water freezes into ice, it increases in volume by 10%. Let’s work out in percentage how much it will decrease in volume if the ice melts into water.

A computer producing factory has only two plants T_(1) "and" T_(2) "Plant" T_(1) produces 20% and plant T_(2) produced 80% of the total computers produced. 7% of computers produced in the factory turn out to be defective. It is known that P (computer turns out to be defective, given that it is produced in plant T_(1) = 10 P (computer turns out to be defective, given that it is produced in plant T_(2) )where P(E) denptes the probability of an event E. A computer produced in the factory is randomly selected and it does not turn out to be defective. Then the probability that it is produced in plant T_(2) is

The income of Amina Bibi was increased by 20% and later decreased by 20%. Let's work out the total change of percentage of her income.

The price of sugar has increased by 20%. Let’s work out the percentage of sugar uses should be decreased if the monthly expenses of sugar remained same.

A factory has two machines A and B. Past record shows that machine A produced 60% of the items of output and machine B produced 40% of the items. Further, 2% of the items produced by machine A and 1% produced by machine B were defective. All the items are put into one stockpile and then one item is chosen at random from this and is found to be defective. What is the probability that it was produced by machine B?

A factory has three machines X, Y and Z producing 1000, 2000 and 3000 bolts per day respectively. The machine X produces 1% defective balts, Y produces 1.5% defective bolts and Z produces 2% defective bolts. At the end of the day, a bolt is drawn at random and it is found to be defective. What is the probability that this defective bolt has been produced by the machine X ?

In a bolt factory three machines A, B and C manufacture respectively 2000, 2500 and 4000 bolts everyday. Of their outputs 3%, 4% and 2.5% are defective bolts. One bolts. One bolt is drawn at random from a day's production and is found to be defective. Then the probability that it was produced by machine C is -