   Direction: What approximate value should come in the place of question mark (?) in the following questions?
Important for :
1
 33.05% of 5010.11 + 1 of 2404.99 = ? 12.93
» Explain it
D
 33.05% of 5010.11 + 1 of 2404.99 = ? 12.93

 ? ≈ 33% of 5010 + 1 of 2405 13

 ⇒ ? = 33 × 5010 + 1 × 2405 100 13

= 1653.30 + 185 = 1838.30 ≈ 1838

Hence, option D is correct.

2
98.98 ÷ 11.03 + 7.014 × 15.99 = ?
» Explain it
D
98.98 ÷ 11.03 + 7.014 × 15.99 = ?

Suppose, ? = x

Then 99 ÷ 11 + 7 × 16 = 9 + 112 = 121   (taking approximate value)

x = 121

Hence, option D is correct.

3
103 × 1003 + 999999999 = 10? + 10?
» Explain it
B
Here 103 × 1003 + 999999999

= 103 × (102)3 + 109

= 103 × 106 + 109

= 103 + 6 + 109

= 109 + 109

Therefore, question mark will be replaced by 9.

Hence, option B is correct.

4
134% of 3894 + 38.94% of 134 = ?
» Explain it
D
134% of 3894 + 38.94% of 134

= 134% of 3894 + 3894 of 1.34%

= 134% of 3894 + 1.34% of 3894

= 135.34% of 3894

= 5270.1396  5270

Hence, option D is correct.

5
(21 + 99) × (30 – 19.02) = ?
» Explain it
E
(21 + 99) × (30 – 19.02)

= 120 × 10.98

= 120 × 11 = 1320

Hence, option E is correct.