For the following questions answer them individually
The simplified form of $$\left(7x + 4y\right)^{2} + \left(7x − 4y\right)^{2}$$ is:
A man bought two bicycles for ₹3,000 each. If he sells one bicycle at a profit of 10%, then for how much percentage profit should he sell the other bicycle so that he makes a profit of 20% on the whole?
Which of the following is the smallest ratio?
If a car covers 75.5 km in 3.5 litres of petrol, how much distance (in km) will it cover in 28 litres of petrol?
Find the effective discount for the scheme - Buy 5 get 3 free
What is the simplified value of (0.00243 (0.2)?
A car travels with a speed of 21 m/sec in the first 10 minutes, 9.0 km in the next 10 minutes and 10 km in the last 10 minutes of its journey. What is the average speed of the car in km/h during its entire journey?
The number 150328 is divisible by 23. If the digits are rearranged in descending order and five times of 13 is subtracted from the new number thus formed, then the resultant number will be divisible by:
What are the values of x and y, respectively, from the following equations?
6x + 7y = 5xy
10y - 4x = 4xy
The value of the expression $$\cos^{2} 45^{\circ} + \cos^{2} 135^{\circ} + \cos^{2} 225^{\circ} + \cos^{2} 315^{\circ}$$ is:
