Numbers

Question 1

What could be the maximum value of Y in the following equation given that neither of X, Y, Z is zero? 5X8 + 3Y4 + 2Z1 = 1103

• 0
• 7
• 8
• 9

Question 2

Which of the following are prime numbers ?

• 147
• 327
• 547
• 637

Question 3

What is the unit\'s digit in the product (267)¹⁵³ x (66666)⁷² ?

• 7
• 6
• 1
• 2

Question 4

What is the total number of prime factors in the expression 12¹² x 16¹⁶ x 18¹⁸ ?

• 46
• 154
• 3456
• 2

Question 5

What should be assigned to # so that 2582#724 is divisible by 11 ?

• 4
• 5
• 6
• 7

Question 6

You are given the largest number of 5-digit, you have to subtract x from this number so that the number is divisible by 23. Find the smallest possible value of x.

• 22

• 20

• 18

• 16

Question 7

On dividing 201098 by a certain number, the quotient is 67 and the remainder is 31. Find the divisor.

• 3011
• 3001
• 3021
• 2991

Question 8

A number leaves remainders 1, 4 and 7 on being divided successively by 3, 5 and 8 respectively. What is the product of the remainders when the order of divisors is reversed ?

• 28
• 48
• 24
• 36

Question 9

What is the smallest number which when divided by 6, 9, 11, 16 and 22 leaves remainder 3 in each case ?

• 3267
• 1584
• 1587
• 9504

Question 10

What is the largest number which divides 26, 47, 84 to leave remainders 2, 3, 0 respectively ?

• 4
• 6
• 8
• 1