Question
What happens when sodium metal reacts with
water?Solution
The correct answer is D
A sphere is melted and recast into 8 smaller spheres of equal size. If the radius of the original sphere is 12 cm, find the radius of each smaller sphere.
Some students (only boys and girls) from different schools appeared for an Olympiad exam. 20% of the boys and 15% of the girls failed the exam. The numb...
A group of boys has an average weight of 44 kg. One boy weighing 50 kg leaves the group and another boy weighing 40 kg joins the group. If now the aver...
A salesman’s terms were changed from a flat commission of 9% on all his sales to a fixed salary of Rs. 4000 plus 4% commission on all sales exceed...
The ratio of length to breadth of a rectangle is 5:4, respectively. Perimeter of rectangle is 162 cm. If each side of a square is 25% more than the brea...
Find the area of a rhombus (in cm2) whose side is 13 cm and the smaller diagonal is 11 cm?
A rectangle has a length to breadth ratio of 7:5. The length is increased by 15% without any change to the breadth, resulting in an 84 m² increase in t...
Which of the following two will provide more volume?
1.A cuboid of edges 6 cm, 8 cm, and 10 cm.
2. A cube of edge 8 cm.
On a rectangular wall of length 21 metres and height 18 metres, there is a window in the shape of triangle surmounted on a square. If the base of triang...
The length of a rectangle is twice its width. If the perimeter of the rectangle is 60 cm, what is the area?
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