Quiz Discussion

How many prime numbers exist in 6⁷ x 35³ x 11¹⁰?

• 1]

  23

• 2]

  27

• 3]

  30

• 4]

  29

A girl multiplies 987 by a certain number and obtains 559981 as her answer. If in the answer, both 9’s are wrong but the other digits are correct, then the correct answer will be

• 1]

  555681

• 2]

  545681

• 3]

  544581

• 4]

  555490

What should be the maximum value of Q in the following equation?
5P9 – 7Q2 + 9R6 = 823

• 1]

  6

• 2]

  7

• 3]

  8

• 4]

  9

Which of the following number is divisible by 24 ?

• 1]

  35718

• 2]

  63810

• 3]

  537804

• 4]

  3125736

If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be

• 1]

  0

• 2]

  1

• 3]

  2

• 4]

  3

If the number 653ab is divisible by 90, then (a + b) = ?

• 1]

  3

• 2]

  4

• 3]

  5

• 4]

  6

72519 X 9999

• 1] 725117481
• 2] 834782931
• 3] 747829383
• 4] 648392011

What is the unit digit { (6374)^1793 X (625)^317 X (341)^491 }

• 1] 1
• 2] 20
• 3] 7
• 4] 0

Find the last unit digit of 55^5 ( Using Euler Theorem)

• 1] 4
• 2] 5
• 3] 3
• 4] 8

What is the unit digit in {(6374)¹⁷⁹³ x (625)³¹⁷ x (341⁴⁹¹)}?

• 1] 5
• 2] 3
• 3] 2
• 4] 0