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Q:
The sum of the digits of a two digit number is 15. When 9 is subtracted from the given number then its digits interchanged. What will be the required original number?
1391 0

Answer : 4. "87"

Q:
A number when divided by 6 leaves remainder 3. When the square of the same number is divided by 6, the remainder is :
1391 0

Answer : 4. "3"
Explanation :
The remainder will be same.
On dividing 9 by 6, remainder = 3
On dividing 81 by 6, remainder = 3

Q:
Two positive numbers differ by 1280. When the greater number is divided by the smaller number, the quotient is 7 and the remainder is 50. The greater number is:
1390 0

Answer : 4. "1485"
Explanation :
Given :- Two positive numbers differ by 1280
When the greater number is divided by the smaller number The quotient is 7 and the remainder is 50
Concept :- Dividend = Quotient × divisor + remainder
Calculation :- Let greater number = a and Smaller number = b From question, ⇒ a - b = 1280 ....(1) Again from question, ⇒ a = 7b + 50 ....(2)
Put the value of a from equation (2) into equation (1) ⇒ 7b + 50 - b = 1280 ⇒ 6b = 1280 - 50 ⇒ 6b = 1230 ⇒ b = (1230/6) ⇒ b = 205
Put the value of b in equation (1) ⇒ a - 205 = 1280 ⇒ a = 1280 + 205 ⇒ a = 1485 ⇒ Greater number = 1485 ∴ Greater number is 1485

Q:
The total number of digits used in numbering the pages of a book of 366 pages is
1385 0

Answer : 2. "990"

Q:
The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number-pairs EXCEPT one. Find that odd number-pair.
1384 0

Answer : 1. "169 : 14 "

Q:
The smallest positive integer, which when multiplied by 392 gives the product a perfect square number, will be :
1381 0

Answer : 4. "None "

Q:
The smallest number, which when added to 680621 gives the sum a perfect square number, will be
1378 0

Answer : 4. "None "

Q:
Directions: Find the wrong number in the following number series:

2, 3, 8, 31, 154, 924, 6460
1375 0

Q: The sum of the digits of a two digit number is 15. When 9 is subtracted from the given number then its digits interchanged. What will be the required original number? 1391 0611e1b0daed88c5ed9487d33

Answer : 4. "87"

Q: A number when divided by 6 leaves remainder 3. When the square of the same number is divided by 6, the remainder is : 1391 0650d36e3d2f211504875ecda

Answer : 4. "3" Explanation :The remainder will be same.On dividing 9 by 6, remainder = 3On dividing 81 by 6, remainder = 3

Q: Two positive numbers differ by 1280. When the greater number is divided by the smaller number, the quotient is 7 and the remainder is 50. The greater number is: 1390 064bfb2f4e2108a7239492d0d

Q: The total number of digits used in numbering the pages of a book of 366 pages is 1385 0632c6a595c208a6bf7ebff89

Answer : 2. "990"

Q: The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number-pairs EXCEPT one. Find that odd number-pair. 1384 0644aa3e0244f7ecdff5ceed8

Answer : 1. "169 : 14 "

Q: The smallest positive integer, which when multiplied by 392 gives the product a perfect square number, will be : 1381 06319b9b26a86583500fe86f2

Answer : 4. "None "

Q: The smallest number, which when added to 680621 gives the sum a perfect square number, will be 1378 06319b523b0a2a82fc54c1e11

Answer : 4. "None "

Q:Directions: Find the wrong number in the following number series: 2, 3, 8, 31, 154, 924, 6460 1375 064d4b805ebd5c3747277ead0

Answer : 1. "924"

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Q:
The sum of the digits of a two digit number is 15. When 9 is subtracted from the given number then its digits interchanged. What will be the required original number?
1391 0

Q:
A number when divided by 6 leaves remainder 3. When the square of the same number is divided by 6, the remainder is :
1391 0

Answer : 4. "3"
Explanation :
The remainder will be same.
On dividing 9 by 6, remainder = 3
On dividing 81 by 6, remainder = 3

Q:
Two positive numbers differ by 1280. When the greater number is divided by the smaller number, the quotient is 7 and the remainder is 50. The greater number is:
1390 0

Q:
The total number of digits used in numbering the pages of a book of 366 pages is
1385 0

Q:
The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number-pairs EXCEPT one. Find that odd number-pair.
1384 0

Q:
The smallest positive integer, which when multiplied by 392 gives the product a perfect square number, will be :
1381 0

Q:
The smallest number, which when added to 680621 gives the sum a perfect square number, will be
1378 0

Q:
Directions: Find the wrong number in the following number series:

2, 3, 8, 31, 154, 924, 6460
1375 0