• 1.  The unit’s digit in the product of (3127)174 is

• 1
• 3
• 7
• 9
• None of these
• 2.  What least number must be added to 8961 to make it exactly divisible by 84?

• 25
• 32
• 33
• 27
• None of these
• 3.  What is the remainder when [(421)221]148 is divided by 422?

• 0
• 1
• 421
• 422
• None of these

• 130
• 520
• 260
• 1040
• 270
• 5.  The greatest number that exactly divides 210, 2002 and 4872 is

• 18
• 14
• 28
• 30
• None of these

• 0
• 2
• 9
• 5
• 1
• 7.  In a three digit number, the digit in the unit place is five times the digit in the hundred’s place. If the digit in the unit’s place and the ten’s place are interchanged, the new number so formed is 18 more than the original number. If the digit in the hundred’s place is one-third of the digit in the ten’s place. What is the 1/9th of the original number?

• 17
• 153
• 135
• 15
• None of these

• 2479
• 2519
• 2527
• 2619
• 2419

• 9
• 11
• 45
• 99
• 101

• (15, 120)
• (30, 60)
• (18, 100)
• (45, 40)
• (15, 90)
• 11.  Find the remainder when 82157 is divided by 9.

• 2
• 1
• 3
• 0
• None of these
• 12.  A 4-digit number is formed by repeating a 2-digit number such as 2525, 3232, etc. Any number of this form is always exactly divisible by: -

• 7
• 11
• 13
• Smallest 3-digit prime number
• 18
• 13.  How many 3 digits numbers are divisible by 9 among the numbers – 187, 648, 543, 837

• 2
• 4
• 1
• 3
• none of these
• 14.  The ratio of two numbers is 7 : 8 and their H.C.F is 5. What would be their L.C.M ?

• 360
• 180
• 280
• 480
• None of these

• 1
• 4
• 5
• 7
• 6

• 24.5
• 43.2
• 43,244
• 21,648
• 32
• 17.  There are two natural numbers, R and S. The LCM of R and S is 200% more than R, while their HCF is 505 less than R. Find the sum of R and S.

• 509
• 1512
• 1521
• 1518
• Cannot be determined

• 202, 606
• 202, 707
• 303, 909
• 101, 909
• 404, 606

• 28
• 6
• 36
• 24
• 12

• 18720
• 18340
• 18080
• 18956
• 18754

• 1
• 2
• 3
• 4
• 5
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