If a number is divisible by two co-prime numbers than it is divisible by their
Choose the right option
A) Sum also
B) Difference also
C)Product also
D) Quotient also

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Solution

$If a number is divisible by 2 co - prime numbers then it is divisible by their product also . Consider two co - prime numbers 2 and 3 . Now, we know that 12 is divisible by 2 and 3 both . Now, 12 is also divisible by (2 \times 3) that is 6 .$

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If a number is divisible by two co-prime numbers, then it is also divisible by their

Q. Choose the correct statements
S1: All the numbers divisible by 10 are also divisible by 5.
S2: A number divisible by 3 is also divisible by 6.
S3: A number is divisible by 7, if the last two digits are divisible by 7.
S4: If a number divides the product of two numbers exactly then it must exactly divide the numbers separately.
S5: If a number exactly divides two numbers separately, and after division, if its difference is taken then this difference will also be exactly divisible by that number.

Question 1

Which of the following statements are true:
(a) If a number is divisible by 3, it must be divisible by 9.
(b) If a number is divisible by 9, it must be divisible by 3.
(c) If a number is divisible by 18, it must be divisible by both 3 and 6.
(d) If a number is divisible by 9 and 10 both, then it must be divisible by 90.
(e) If two numbers are co-primes, at least one of them must be prime.
(f) All numbers which are divisible by 4 must also be divisible by 8.
(g) All numbers which are divisible by 8 must also be divisible by 4.
(h) If a number exactly divides two numbers separately, it must exactly divide their sum.
(i) If a number exactly divides the sum of two numbers, it must exactly divide the two numbers separately.

Q. If a number is divisible by

8

, then it also divisible by

4

also . Explain?

Q. If a number is divisible by two numbers, then the number is also divisible by the product of those two numbers.

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If a number is divisible by two co-prime numbers than it is divisible by their Choose the right option A) Sum also B) Difference also C)Product also D) Quotient also

If a number is divisible by 2 co-prime numbers then it is divisible by their product also.Consider two co-prime numbers 2 and 3.Now, we know that 12 is divisible by 2 and 3 both.Now, 12 is also divisible by 2×3 that is 6.

If a number is divisible by two co-prime numbers than it is divisible by their
Choose the right option
A) Sum also
B) Difference also
C)Product also
D) Quotient also

$If a number is divisible by 2 co - prime numbers then it is divisible by their product also . Consider two co - prime numbers 2 and 3 . Now, we know that 12 is divisible by 2 and 3 both . Now, 12 is also divisible by (2 \times 3) that is 6 .$