24. Find the output.

void main()
{
int i=3, *j, k;
j = &i;
printf("%d\n", i**j*i+*j);
}

Answer: 
30

23. A triangle is made from a rope. The sides of the triangle are 25 cm, 11 cm and 31 cm. What will be the area of the square made from the same rope?

Solution: 

Add all sides 25+11+31 to get rope length rope length =67,rope is made in to as square. So side of square is 67/4=16.75 and so area is 16.75*16.75=280.5625.
Ans : 280.5625

22. If DDMUQZM is coded as CENTRAL then RBDJK can be coded as _____

Ans : QCEIL

21. Four different integers are in increasing AP such that one number is equal to sum of the squares of the other three numbers.

Ans : 1,0,1,2

20. Rs 1,050 are divided among P, Q and R. The share of P is 2/5 of the combined share of Q and R. P gets ?

Ans : Rs 300

19. A train 130 metres long and travelling at 45 km/hr can cross a bridge in 30 seconds. Find the length of the bridge.

Answer:

245 m.  

Explanation:

Speed =		45 x	5	m/sec	=		25	m/sec.
			18				2

Time = 30 sec.

Let the length of bridge be x metres.

Then,	130 + x	=	25
	30		2

 2(130 + x) = 750

 x = 245 m.

18. Pointing to a lady a person said, "The son of her only brother is the brother of my wife." How is the lady related to the person?

Answer:

Sister of father-in-law 

Explanation:

Brother of person's wife → brother-in-law of the person. Hence, the son of lady's brother is brother-in-law of the person.

Therefore, the brother of the lady is the father-in-law of the person. Hence, the lady is the sister of the person's father-in-law.

17. The angle of elevation of the sun, when the length of the shadow of a tree 3 times the height of the tree, is??

Answer:
30º

Explanation:

Let AB be the tree and AC be its shadow.

Let ACB = .

Then,	AC	=	3          cot  = 3
	AB

  = 30º.

16. Find the output.

int main()
{
int ***r, **q, *p, i=8;
p = &i;
q = &p;
r = &q;
printf("%d, %d, %d\n", *p, **q, ***r);
return 0;
}

Answer:
8,8,8

15. Find the Next no

If
5+3+2=151012 ,
9+2+4=183662.
8+6+3=482466,
5+4+5=202504
then what ll be the answer of
7+2+5=??????

Answer:
143542

Explanation:
a+b+c = (a*b)&(a*c)&reverse[b(a+c)]