Let the speed of stream be ‘x’ km/hr. So, speed of boat in still water = 5 × x = 5x km/hr Downstream speed of boat = 5x + x = 6x km/hr According to question; 6x = 126/7 = 18 Or, x = 3 Upstream speed of the boat = 5x – x = 4x = 4 × 3 = 12 km/hr Required time taken = 108/12 = 9 hours
Best nitrogenous fertilizer for rice crop is:
Khaira disease of rice is due to
Which color sticky traps are used for aphids and white fly?
Preparing farm budget in advance is known as________
Which type of parthenocarpy is observed in Banana?
The 'equivalent basicity' of the fertilizer Sodium nitrate is:
In May 2021, which country successfully achieved landing of unscrewed spacecraft on Mars?
Bael is rich source of:
Conversion of ADP to ATP is known as:
Based on mode of organization and functioning groups are classified as:
