Correct Option: A

=		999	998		× 999
			999

Let p be added to given number .
According to question ,
⇒ p + 0.01 = 1.1
⇒ p = 1.1 - 0.01

Correct Option: B

Let p be added to given number .
According to question ,
⇒ p + 0.01 = 1.1
⇒ p = 1.1 - 0.01
∴ Required number = 1.1 – 0.01 = 1.09

[n] < n (integer); (n) > n (integer)
∴ Expression

	1	1		×		1	1		−		1	1		÷		1	1		+ (1.5) = 2 × 1 – 2 ÷ 1 + 2
		5					5					5					5

Correct Option: B

[n] < n (integer); (n) > n (integer)
∴ Expression

	1	1		×		1	1		−		1	1		÷		1	1		+ (1.5) = 2 × 1 – 2 ÷ 1 + 2 = 2
		5					5					5					5

5⁷¹ + 5⁷² + 5⁷³ = 5⁷¹ (1 + 5 + 5²)

Correct Option: C

5⁷¹ + 5⁷² + 5⁷³ = 5⁷¹ (1 + 5 + 5²)
⇒ 5⁷¹ + 5⁷² + ⇒ 5⁷³ = 5⁷¹ × which is exactly divisible by 155.
Hence required answer is 155 .

∴ The required number = 11 – 4 = 7
2nd Method to solve this question :
Sum of digits at odd places = 2 + 6 + 0 = 8

Correct Option: C

∴ The required number = 11 – 4 = 7
2nd Method to solve this question :
Sum of digits at odd places = 2 + 6 + 0 = 8, sum of digits at even places = 4 + 3 + 8 = 15. For divisibility by 11, difference i.e., (15 – 8) = 0 or mutiple of 11.
∴ The required number = 7