Decimal Fraction

How many digits will be there to the right of the decimal point in the product of 95.75 and .02554 ?

A:

5

B:

6

C:

7

D:

None of these

Answer: B

Sum of decimal places = 7.

Since the last digit to the extreme right will be zero (since 5 x 4 = 20), so there will be 6 significant digits to the right of the decimal point.

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5 x 1.6 - 2 x 1.4	= ?
1.3

A:

0.4

B:

1.2

C:

1.4

D:

4

Answer: D

Given Expression =	8 - 2.8	=	5.2	=	52	= 4.
	1.3		1.3		13

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The least among the following is:

A:

0.2

B:

1 ÷ 0.2

C:

0.2

D:

(0.2)²

Answer: D

1 ÷ 0.2 =	1	=	10	= 5;
	0.2		2

0.2 = 0.222...;

(0.2)² = 0.04.

0.04 < 0.2 < 0.22....<5.

Since 0.04 is the least, so (0.2)² is the least.

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Which of the following is equal to 3.14 x 10⁶ ?

A:

314

B:

3140

C:

3140000

D:

None of these

Answer: C

3.14 x 10⁶ = 3.14 x 1000000 = 3140000.

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95 + 240.016 + 23.98 = ?

A:

298.0946

B:

298.111

C:

298.946

D:

299.09

Answer: C

   34.95
  240.016
 + 23.98
 --------
  298.946
 --------

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Questions for: Decimal Fraction