ST Microelectronics Papers: Sample Questions 9  11 of 40
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Question number: 9
» Aptitude
MCQ▾
Question
Which conversion is not possible?
Choices
Choice (4)  Response  

a.  Char to float 

b.  Int to float 

c.  Float to int 

d.  All a. , b. and c. are correct 

Answer
d.Explanation
 All types of conversions are possible through implicit or explicit way of conversion.
 Any float value of variable can be demoted to integer value. Like,
 int a = 3.5;
 will store a = 3 only. Here, float value 3.5 gets demoted to integer 3
 Same way, any integer value can be promoted to float value. Like,
 float a = 15;
 will store a = 15.0000. Here, integer value gets promoted to float 15.0000
 Same way, any character can be promoted to integer and integer can be promoted to float. Like,
 floati = ‘A’;
 will store ASCII value of character ‘A’ in variable i (i. e. 65) and this integer value gets promoted to 65.0000 float value.
 So, we can say that all conversions are possible.
Question number: 10
» Aptitude
Short Answer Question▾
Write in Short
At 20 % discount, a cycle is sold at a selling price of 2500 Rs. What is the actual price?
Explanation
 Here, selling a cycle at 20 % discount, it costs Rs. 2500
 So we can say 80 % of cost price is Rs. 2500
 Actual price = 100 % of cost price
 So, 80 % costs Rs. 2500
100 % costs Rs. (? )
=
= 3125
 So, actual price of cycle is Rs. 3125.
Question number: 11
» Aptitude
Short Answer Question▾
Write in Short
Two lemons cost 10 cents. Then one and a half dozen cost
Explanation
1 dozen = 12 pieces
So one and half dozen = 12 + 6 = 18 pieces, i. e There are 18 pieces of lemon.
Cost of 2 lemons = 10 cents
Cost of 18 lemons = (? )
=
=
=90
So, Cost of one and half dozen will be 90 cents.