Question
If '57x8y' is a five-digit number which is divisible by 72,
then find the value of (5x - y).Solution
ATQ,
Since, 72 = 9 × 8
So, the given number must be divisible by both 9 and 8.
Divisibility by 8:
Last three digits of the number (x8y) must be divisible by 8.
For x = 1 and y = 6, the number "186" is divisible by 8.
Divisibility by 9:
Sum of the digits (5 + 7 + 1 + 8 + 6 = 27) must be divisible by 9, which it is.
Hence, x = 1, y = 6
And, 5x - y = 5 × 1 - 6 = 5 - 6 = -1
With respect to irradiation of food, which one of the following is INCORRECT:
The chief muscle pigment in meat protein is called
World Food Safety Day is observed on 7th June every year. The theme for the year 2022 was_____
Citronella is commercially propagated through
The degree to which individuals involved in a communication are similar in certain characteristics is defined as:
Soap is prepared by boiling caustic soda with -
Goniozus nephantidis is parasitoid of which insect pest?
Which of the following is not zymogen?
Which of the following fish processing methods involves cooking food, sealing it in sterile containers, and then boiling the containers to ensure steril...
Banana is vegetatively propagated through
