Adina, Julius, and Tia volunteered to read to children at the public library. Julius worked 2 hours less then Tia. Adina worked twice as many hours as Julius. All together they worked 58 hours. How many hours did Adina work?

If Tia work :x hrs

Julius work :X - 2

Andera work :2 ( x -2)

then ,

X +( X - 2) + 2( X - 2) = 58

X = 16

Andera work: 2( x - 2)

2(16 -2) = 28 hours

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There are six persons A, B, C, D, E and F.
C is the sister of F. B is the brother of E's husband. D is the father of A and
grandfather of F. There are two fathers, three brothers and a mother in the
group. How many male members are there in the group?

Option (D)

D is father of A and grandfather of F. So, A is father of F. Thus, D and A are the two fathers. C is the sister of F. So, C is the daughter of A. Since there is only one mother, it is evident that E is the wife of A and hence the mother of C and C and F. So, B is brother of A. There are three brothers. So, F is the brother of C. A, the father, is male. B, the brother, is male. C, the sister, is female. D, the grandfather, is male. E, the mother, is female. F, the brother, is male. So, there are four males.

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The Cooking Club made some pies to sell at a basketball game to raise money for the new math books. The cafeteria contributed four pies to the sale. Each pies did the club make?

The total number of pies was 60/5= 12.

The cafeteria contributed : 4

So, the club must have made 12-4=8

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Pointing to a photograph, a woman says," This man's son's sister is my mother in law". How is the woman's husband related to the man in the photograph?

Blood relation analysis:

Man's son sister: man's daughter

So man's daughter is the mother of woman's husband. Thus, the woman's husband is the grandson.

So the woman's husband is the grandson of the man in photograph.

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What will be remainder when 17200 is divided by 18 ?

When n is even. (xn - an) is completely divisibly by (x + a)

(17200 - 1200) is completely divisible by (17 + 1), i.e., 18.

(17200 - 1) is completely divisible by 18.

On dividing 17200 by 18, we get 1 as remainder.

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In a ship provisions are sufficient for 700 men for 50 days. How long will these be sufficient for if there would have been 200 more men?

Let provision be sufficient for 200 men for x days

As men and days are inversely proportional to each other so,

X/50=700/1000

X=700/1000*50

X=35

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