Number System
- A number divided by 68 gives the quotient 269 and remainder zero. If the same number is divided by 67, the remainder is :
-
View Hint View Answer Discuss in Forum
According to question ,
Number = 269 × 68 + 0
Number = 269 × (67 + 1)Correct Option: B
According to question ,
Number = 269 × 68 + 0
Number = 269 × (67 + 1)
Number = 269 × 67 + 269
Clearly, remainder is obtained on dividing 269 by 67 that is 1.
Thus , required remainder is 1.
- When a number is divided by 357 the remainder is 39. If that number is divided by 17, the remainder will be :
-
View Hint View Answer Discuss in Forum
Here, 357 is exactly divisible by 17.
∴ Required remainder = Remainder obtained on dividing 39 by
17Correct Option: C
Here, 357 is exactly divisible by 17.
∴ Required remainder = Remainder obtained on dividing 39 by
17
⇒ 39 = ( 17 × 2 ) + 5
Hence required answer is 5 .
- (719 + 2) is divided by 6, the remainder is :
-
View Hint View Answer Discuss in Forum
Using the Binomial expansion , we have
(x + 1)n = xn + nc1 xn–1 +
nc2 xn– 2 + ..... + ncn–1 x +1
Here, each term except the last term contains x. Obviously, each term except the last term is exactly divisible by x.Correct Option: B
Using the Binomial expansion , we have
(x + 1)n = xn + nc1 xn–1 +
nc2 xn– 2 + ..... + ncn–1 x +1
Here, each term except the last term contains x. Obviously, each term except the last term is exactly divisible by x.
Following the same logic,
∴ 719 = (6 + 1)19 has each term except last term divisible by 6.
Hence, 719 + 2 when divided by 6 leaves remainder
⇒ 719 + 2 = 1 + 2 = 3
Hence the remainder is 3.
- A number, when divided by 119, leaves a remainder of 19. If it is divided by 17, it will leave a remainder of :
-
View Hint View Answer Discuss in Forum
On dividing the given number by 119, let k be the quotient and 19 as remainder.
Then, number = 119k + 19Correct Option: D
On dividing the given number by 119, let k be the quotient and 19 as remainder.
Then, number = 119k + 19
number = 17 × 7k + 17 × 1 + 2
number = 17 (7k + 1) + 2
Hence, the given number when divided by 17, gives (7k + 1) as quotient and 2 as remainder.
Hence , required remainder is 2.
- The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is :
-
View Hint View Answer Discuss in Forum
Let the numbers be p and q and p is greater than q.
As given,
The product of two numbers = 9375
pq = 9375 .......(i)
Again,p = 15 q
Correct Option: C
Let the numbers be p and q and p is greater than q.
As given,
The product of two numbers = 9375
pq = 9375 .......(i)
Again,p = 15 q
⇒ p = 15q
∴ From equation (i),
15q × q = 9375⇒ q2 = 9375 = 625 15
⇒ q = √625 = 25
∴ p = 15y = 15 × 25 = 375
∴ p + q = 375 + 25 = 400
Hence , The sum of the numbers is 400 .