For the following questions answer them individually
If the 9-digit number 72 $$x$$ 843 1 y 4 is divisible by 36, what is the value of $$\left(\frac{x}{y}-\frac{y}{x}\right)$$
In the given figure, the circle with centre O has radius IO cm. The radius of the circle with centre P is x . STR is a common tangent to the two circles at points R and S as shown in the figure. RT= 16 cm and TS = 24 cm. What is the value of x (in cm)?
Two trains A and B start running at 80km/h and 82 km/h towards each other from two different stations. They meet after 1 hour and 30 minutes. How far were they from each other when they started?
What is the value of $$\frac{\sin A+B}{\sin A \cos B}$$?
Study the given table and answer the question that follows.
Find the number of students who opted Biology in School D.
What is the total surface area of a solid right circular cylinder of radius 7 cm and height 8 cm? ($$ \pi = \frac{22}{7}$$)
Simplify the following expression.
$$72 − 42 \div 6 of 7 \times 4 of 3 \div 4 \times 3 − 5$$
A and B can complete a work in 10 days and 15 days, respectively. They got a total of Rs. 1,250 for that work. What will be B’s share?
The LCM of x and y is 441 and their HCF is 7. If x = 49 then find y.
The mean proportional between 0.04 and 0.36 is: