Question
The station master decides that the length and breadth
of the rectangular digital board should be 8% larger and decrease by 2%, respectively. Find out the total change in the area.Solution
Let length and breadth of the rectangular board be x and y respectively. As we know, Area of the rectangle = xy New length of the rectangular board = x x 108/100 = 1.08x New breadth of the rectangular board = y x 98/100 = 0.98y New area of the rectangular board = 1.08x x 0.98y = 1.0584xy Area increased by (in %) = [(1.0584xy-xy)/xy] x 100 = 5.84%
√323.89 × (3.20) ÷ 9.02 =?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
23.98% of 624.99 = 19.98% of ? + 14.98% of 639.99
Direction: Please solve the following expression and choose the closest option
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
12, 16, ?, 36, 52, 72
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(6859.01)1/3 × 10.11 × 14.47 ÷ 20.32 = ? + 45.022
33.33% of 809.891 + 66.66% of 212.91 = ?
