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Let the total capacity of tank be 120 units Efficiency of pipe ‘A’ = 120/30 = 4 units/hour Efficiency of pipe ‘B’ = 120/40 = 3 units/hour Tank filled in 2 hours = (4 – 3) = 1 units Therefore, tank filled in (2 × 27 = 54 hours) = 1 × 27 = 27 units Required percentage of tank filled = (27/120) × 100 = 22.5%
Pebrine is a disease of B. mori:
Heavy infestation of which of the following causes poor ploughing performance?
When to irrigate wheat after sowing if only one irrigation water is available:
Which scheme aims to promote the use of bio-pesticides and bio-agents for pest control?
Which disease of wheat is known as cancer of wheat?
What type of herbicides are designed to control or kill a wide range of weed species?
Identify the wrong sequence
When an allele of one gene hides or masks the visible output, or phenotype, of another gene it is known as:
Panama wilt is a disease of which crop?
An acute or chronic inflammation of the mammary gland caused by physical, chemical and biological agents chiefly of bovines usually affecting the secret...