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2.5 × 3 – 1 = 6.5 6.5 × 3 – 1 = 18.5 18.5 × 3 – 1 = 54.5 54.5 × 3 – 1 = 162.5 162.5 × 3 – 1 = 486.5 486.5 × 3 – 1 = 1458.5
In measuring the sides of a rectangle, there is an excess of 20% on one side and 15% deficit on the other. Then the error percent in the area is
The circumference of a circle is equal to the perimeter of a rectangle whose length and breadth are in ratio 7:5, respectively. If the area of the recta...
On a rectangular wall of length 35 metres and height 30 metres, there is a window in the shape of triangle surmounted on a square. If the base of triang...
In a class of 50 students and 20 teachers, each student got gifts that were 24% of total number of students and each teacher got gifts that were 16% of ...
In a triangle ABC, D, E and F are the mid-points of the sides BD, CA and AB, respectively. BE and DF intersect at X. DE and CF intersect at Y. Find XY = ?
The base of the triangular area is two times its height. If the cost of farming area is Rs. 2000 and Rs. 80 per hectare. Find its base (1 hectare = ...
If the area of square is 441 cm² and the breadth of rectangle is 20% more and the length is 50% more than the side of the square, then find the the a...
A, B and C enter into a partnership, A invest 2X + 5000, B invest X + 15000 and C invest 5X + 2000 for one year if B share is 10000 from total profit of...
The length, breadth and height of a storeroom are 12m, 7m and 10m respectively. If each box occupies 40 m3 of space, then how many boxes can ...