The table given below shows the information about bats manufactured by 6 different companies. Each company manufactures only plastic and wooden bats. Each company labels these bats as Brand A or Brand B. The table shows the number of plastic bats as a percentage of total bats manufactured by each company. It also shows the ratio of wooden bats labelled A and B. Each company manufactured a total 550000 bats.

What is the total number of wooden bats of brand A manufactured by company T?

There would be a 10 % loss. if rice is sold at ₹ 54 per kg. To earn a profit of 20 %, the price of rice per kg will be 

A sum of money doubles itself at compound interest in 15 years. In how many years it  will become eight times?

The radii of three concentric circles are in the ratio of 4 : 5 : 7. What is the ratio of the area between the two inner circles to that between the two outer circles?

The value of (81)3.6 * (9)2.7/ (81)4.2 * (3) is __

Evaluate the following.

sin 25° sin 65° – cos 25° cos 65°.

The ratio of the sides of a triangle is 3: 4: a and the area of this triangle is 216 square cm. And the perimeter of this triangle is 72 cm. Then the value of a will be -

$$ {I.2x^{2}-{9x}+10=0}$$
$$ {II.2y^{2}-13y+20=0}$$