An area of 0.6 ha each of wheat and maize is irrigated daily with a discharge of 2000 litre per minute for a period of 15 hours. Each crop receives 8 cm of water. Determine efficiency (%) of irrigation system
Irrigation efficiency = water that reached the field/ total water delivered × 100 Total field area = 0.6 + 0.6 ha = 1.2 ha Depth of water = 8 cm Total volume of water reached the field = 1.2 × 10,000 × 0.08 = 960 m3 1 m3 = 1000l 960 m3 = 9,60,000 l Total water delivered in the field = 2000 × 60× 15 l Irrigation efficiency = 9,60,000 l / 2000 × 60× 15 l = 53.3 %
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
√(?) = (897 × 51) ÷ 1016.6
∛21952 × 44 = ? × 14
Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence?
10 × 100 ÷ 5 + 9 = ?
(8 x 9) ÷ 5 + ?2 = 23.4
{(522 – 482 ) ÷ (27 + 73)} × 35 = ?% of 175
`(450 -: ?)/(2.5 xx 1.2)` = 250
40500 ÷ 30 × 42 – 45% of 2400 =? + 42100
135.37 – 50.24 + 629.09 – 199.50 = ? – 214.68 + 42.65
