Advertisements
Advertisements
प्रश्न
Find the smallest number which leaves remainders 8 and 12 when divided by 28 and 32 respectively.
उत्तर
TO FIND: The smallest number which leaves remainders 8 and 12 when divided by 28 and 32 respectively.
L.C.M of 28 and 32.
`28=2^2xx7`
`32=2^5`
L.C.M of 28 ,and `32= 2^5xx7`
=224
Hence 224 is the least number which exactly divides 28 and 32 i.e. we will get a remainder of 0 in this case. But we need the smallest number which leaves remainders 8 and 12 when divided by 28 and 32 respectively
Therefore
= 224-8-12
=204
Hence 204 is the smallest number which leaves remainders 8 and 12 when divided by 28 and 32 respectively
APPEARS IN
संबंधित प्रश्न
Prove that if a positive integer is of the form 6q + 5, then it is of the form 3q + 2 for some integer q, but not conversely.
Define HOE of two positive integers and find the HCF of the following pair of numbers:
100 and 190
Using prime factorization, find the HCF and LCM of 21, 28, 36, 45 .
Find the simplest form of `368 /496` .
Without actual division show that each of the following rational numbers is a non-terminating repeating decimal.
(i)`77/210`
Find the greatest number of 6 digits exactly divisible by 24, 15 and 36.
The sum of two prime number is always a prime number (True/ False).
If a = 23 ✕ 3, b = 2 ✕ 3 ✕ 5, c = 3n ✕ 5 and LCM (a, b, c) = 23 ✕ 32 ✕ 5, then n =
Prove that one of any three consecutive positive integers must be divisible by 3.
Assertion: If the HCF of 510 and 92 is 2, then the LCM of 510 and 92 is 32460.
Reason: As HCF (a, b) × LCM (a, b) = a × b