Aptitude - Decimal Fraction
11.
The least among the following is :
Answer
1 ÷ 0.2 = 10 ÷ 2 = 5;
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.
Answer :
Option DExplanation :
1 ÷ 0.2 = 10 ÷ 2 = 5;
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.
12.
When 0.232323..... is converted into a fraction, then the result is :
Answer
0.232323... = 0.23 = 2399
Answer :
Option CExplanation :
0.232323... = 0.23 = 2399
13.
2.43 x 2.43 + 2.43 x 7.57 x 2 + 7.57 x 7.57 =
Answer
Given expression = (a2 + 2ab + b2), where a = 2.43 and b = 7.57
= (a + b)2 = (2.43 + 7.57)2 = (10)2 =100.
Answer :
Option BExplanation :
Given expression = (a2 + 2ab + b2), where a = 2.43 and b = 7.57
= (a + b)2 = (2.43 + 7.57)2 = (10)2 =100.
14.
HCF of 1.08, 0.36 and 0.9 is
Answer
The given numbers are 1.08, 0.36 and 0.9
HCF of 108, 36, 9 is 18.
∴ Required HCF is = 0.18.
Answer :
Option CExplanation :
The given numbers are 1.08, 0.36 and 0.9
HCF of 108, 36, 9 is 18.
∴ Required HCF is = 0.18.
15.
If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 = ?
Answer
29.941.45 =
299414.5 x 110 
= 17210 = 17.2
Answer :
Option CExplanation :
29.941.45 =
299414.5 x 110 = 17210 = 17.2 Jump to page number :