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Let A’s age be x years and father’s age be 6x years. Present age of B = 4 + 3 = 7 years After 10 years, => 6x + 10 = 2(7 + 10) => 6x = 34 – 10 => x = 24/6 = 4 years
A wire is in the form of square with side 11 cm. It is bent to form a circle. What is the radius of the circle?
Height of a cylindrical vessel is equal to side of a square, whose area is 324cm². Radius of cylindrical vessel is equal to average of radius of a sphe...
The angle of depression of the foot of a building from the top of a tower 54√3 m away is 30°. How high is the tower?
The area of an equilateral triangle is given as 432 √3 cm2 . A square is constructed such that one of its sides is equal to the height of...
The complete expense of covering the floor of a chamber at the rate of Rs 7.50 per square centimeter amounts to Rs 1875. If the length of the room measu...
The cost of fencing a rectangular plot at the rate of Rs. 12/metre is Rs. 960. If the ratio of the length to breadth is 5:3, find the area of the rectan...
If two complementary angles are in the ratio of 3:2, find the greater angle.
2[sin x – cos x]4 + 6[sin x + cos x]2 + 5[sin6 x + cos6 x]= ?
A horse is tethered to a peg with a 28 metre long repeat the corner of a 45 metre long and 25 metre wide rectangular grassfield. What area of field does...