Question
If the ratio of boys to girls in a class is 3:4 and the
total number of students is 56, how many boys are there?Solution
Let the number of boys = 3x and girls = 4x. Total = 3x + 4x = 56 => 7x = 56 => x = 8. Thus, boys = 3x = 3*8 = 24. Correct answer: b) 24
Ajay and Bijay can individually complete a task in 18 days and 24 days, respectively. If they work together to finish the task an...
Find the area enclosed between the curves y=(x−4)2 and y=16−x2over their intersection interval.
I. x ² – 10x + 21 = 0
II. y ² – 8y + 15 = 0
A cylindrical tank with height 14 m and diameter 6 m is 3/5th full. Find the volume of water in the tank.
‘P’ and ‘Q’ invested Rs. 900 and Rs. 750 respectively in a business. After 6 months, ‘P’ increased his investment by Rs. 150 while ‘Q’ d...
If sinθ + cosθ = 2a and tanθ + cotθ = b, then find a in terms of b.
Which is not the function of the Operating System?
Which Is the layer of a computer system between the hardware and the user program
A triangle has sides 7 cm, 24 cm, and 25 cm. A circle is inscribed in the triangle. What is the area of the triangle not covered by the circle?
