Question
Ratio of length to width of a rectangular field is 4:7.
If the perimeter of the field is 440 metres, then find the area (in m2) of the field.Solution
Let length and width of the rectangular field be β4xβ metres and β7xβ metres, respectively. So, 2(4x + 7x) = 440 Or, x = 20 Area of the field = 4x Γ 7x = 28 Γ (20)2 = 11200 m2
22 – 15 + 20 × 18 ÷ 6 – 34 = ?
16 Γ ? + 36% of 250 = 410
15% of ? = 30% of 320 + 17 Γβ676 β 63.5 Γ 8
8(3/4) + 5(1/6) β 4(3/4) = ?
19 × ? =361 ÷ 19
72.5% of 400 – 23.25% of 1020 = 105% of ?
1549.8 ÷ 8.2 + 65.6 × 55 = (? × 4) + (42 × 30.5)
What will come in the place of question mark (?) in the given expression?
7 X 18 + ? = (52 - 6) X 9
What will come in the place of question mark (?) in the given expression?
(5/8) Γ 1600 + (2400 Γ· 25) = ?Β