ATQ, Number of coins in A = 4a Number of coins in B = 5a Number of coins in D = 5a – 4 Number of coins in C = ¾ × (5a – 4) (4a + 5a + 5a – 4 + (15a – 12)/4)/4 = 87 14a + (15a/4) = 87 ×( 4 + 7) 71a = 1420 a = 20 Number of Coins in A = 20 × 4 = 80
If x and y are the roots of x2 + x + 3 = 0, then (x11 + y11)/(x-11 + y-11) is equal to:
If both the equations I and II given below are added, then find the product of roots of newly formed equation.
I: 3x2 + 9x + 5
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The downstream speed of a boat is 4 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
Jaya goes to station at a speed of 6 km / hr and returns back at a speed of 9 km / hr. If she takes 5 hrs. in all. Find the distance between her home an...
If the sum of the squares of the roots of p2 - (x-2)p - (x+1) = 0 is 5 then what is the value of x.
A and B are the roots of equation x2 - 13x + k = 0. If A - B = 5, what is the value of k?
The ratio between the speed of a bus and train is 15:27 respectively. Also, a car covered a distance of 720 km in 9 hours. The speed of the bus is three...
The question consists of four statements: I, II, III and IV given below it. You have to decide whether the data given in which of the following statemen...
Time is taken by two trains running in opposite directions to cross a man standing on the platform in 28 seconds and 18 seconds respectively. It took 24...
The main folder on a storage device is known as
