Simplification and Approximation

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Question 1

(1015)2 = ?

  • A

    1040125

  • B

    1030225

  • C

    1050125

  • D

    1025125

Question 2

9848 x 125 = ?

  • A

    1232000

  • B

    1242000

  • C

    1231000

  • D

    1233000

Question 3

103 x 103 + 97 x 97 = ?

  • A

    21348

  • B

    20018

  • C

    19648

  • D

    21428

Question 4

What should be the value of x in equation (x / √216) = (√96 / x)

  • A

    12

  • B

    13

  • C

    9

  • D

    11

Question 5

512 x 512 + 488 x 488 = ?

  • A

    512438

  • B

    502568

  • C

    500288

  • D

    514318

Question 6

7 + 72 + 73...........76 =?

  • A

    140136

  • B

    142156

  • C

    133256

  • D

    137256

Question 7

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

  • A

    7

  • B

    6

  • C

    1

  • D

    2

Question 8

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

  • A

    0

  • B

    7

  • C

    8

  • D

    9

Question 9

25 / 5 × 5 = ?

  • A

    1

  • B

    25

  • C

    5

  • D

    125

Question 10

If p - q = 6 and p2 + q2 = 116, what is the value of pq?

  • A

    20

  • B

    60

  • C

    40

  • D

    10

There are 23 questions to complete.

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