55 litres of a solution contains alcohol and water in the ratio 2:3. Water is added in the solution. The new mixture has a ratio of alcohol and water as 1:5. Find the quantity of water added.
Let initial quantity of alcohol and water be 2x and 3x. ⇒ 2x + 3x = 55 ⇒ 5x = 55 ⇒ x = 11 Initial quantity of alcohol = 2x ⇒ 22 litres Initial quantity of water = 3x ⇒ 33 litres Let the water to be added be x litres. 22/(33 + x) = 1/5 ⇒ 110 = 33 + x ⇒ 77 = x Therefore, quantity of water added is 77 litres.
Tassar silk is also known as
The headquarter of Central Silk Board is located at
Pebrine disease of silkworm is caused by
The process of killing pupa without changing the cocoon shell layer is called_________.
Which one of the following is red in the adult of red hairy caterpillar?
Which of the following statements is true about Entomology?
Which of the following insects is the carrier of grassy stunt pathogenic virus?
The total number of abdominal legs in the larval stage of the mustard sawfly is ____.
Which one of the following hormones sclerotizes the newly formed cuticle?
Elytra are the modified, hardened front wings of _____
