Question
If the 6-digit number '5a1897' is divisible by '11',
determine the value of 'a'.Solution
ATQ,
A number is divisible by 11 if difference between the sum of digits at odd places and the sum of the digits at even places is either zero or divisible by 11. (We can count from either side). So, sum of digits at odd places (Counting from right to left) = 7 + 8 +a = 15 + a And, sum of digits at even places = 9 + 1 + 5 = 15 So, required difference = 15 + a – 15 = a So, ‘a’ must be either ‘0’ or a multiple of ‘11’. But since only ‘0’ is in the options. So, ‘a’ must be 0
When plant cells are placed in hypertonic solution, they become____
The green revolution leads to the production of foodgrains basically paddy and wheat, golden revolution is phased out in similar pattern for the product...
Hopper burn is a symptom of _____
Which fungal disease affects rice plants and is characterized by white, powdery growth on leaves and stems?Â
ICAR- National Bureau of Animal Genetic Resources is situated at ___Â
Who is known as the father of modern microbiology?
Which of the following is the primary cotton species cultivated in northern India under irrigated conditions?
Rice variety IR–36 belongs to the groups of:
In Stage III of Law of Diminishing marginal returns, the value of Elasticity of production is
The gradual increase in the concentration of nutrients in an aging aquatic ecosystem such as a lake is called ____
