Let the speed of boat be x km/h. => (x + 3)/(x – 3) = 5/2 ⇒ 2x + 6 = 5x – 15 ⇒ 3x = 21 ⇒ x = 7 Downstream speed = 7 + 3 = 10 km/h Required distance = 10 × 2 = 20 km
Which scattering phenomenon is responsible for the primary cause of the blue color of the sky?
Which of the following is matched correctly?
Plough Pan is developed due to
Vertisol order soil is found maximum in which state?
Which of the following is a Time-Temperature Indicator (TTI)?
Crops grown to supplement the yield of main crops are called
Which of the following class of Vertebrates possess milk producing glands?
Herbicide A and herbicide B was applied on plot I and plot II respectively. The weed index of plot I is 70 % and Plot II is 73 %. What are the inference...
The majority of phytophagous nematodes are?
Initiation of soil movement in wind erosion takes place under
