The present ages of 3 persons are in proportion 3 : 4 : 5. After 5 years, the sum of their age is 75. Find their present age in years.

Let their present ages be 3x, 4x and 5x years respectively.

Then, (3x+ 5) + (4 x + 5 ) + ( 5 x + 5 ) =75

12 x = 60

x = 5

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so, the present ages are 10 years, 15 years and 20 years respectively.

In a family, there are six members A, B, C, D, E and F. A and B are a married couple, A being the male member. D is the only son of C, who is the brother of A. E is the sister of D. B is the daughter-in-law of F, whose husband has died. How is F related to C?

Option (C) A is a male and married to B. So, A is the husband and B is the wife. C is the brother of A. D is the son of C. E, who is the sister of D will be the daughter of C. B is the daughter-in-law of F whose husband has died means F is the mother of A. F is the mother of A and C is the brother of A. So, F is the mother of C.

In following questions, one term in number series is incorrect.

Find out the incorrect number

11, 5, 20, 12, 40, 26, 74, 54

Find out the incorrect number

11, 5, 20, 12, 40, 26, 74, 54

The given sequence is a combination of two series:

I. 11, 20, 40, 74 and

II. 5, 12, 26, 54

The pattern in I becomes + 9, + 18, + 36, ... if 40 is replaced by 38.

So, 40 is wrong..

If A+ B means A is the sister of B.

A - B means A is the brother of B.

A x B means A is the daughter of B.

Which of the following shows the relation that E is the maternal uncle of D?

Clearly, E is the maternal uncle of D means D is the daughter of sisters (say F) of E.i .e.

D x F+E.

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Hence the answer is (C).

Jane and Naura are age fellows. The total age of Miley and Naura is 7 years more than the total age of Jane and Bell

Bell is how many years younger than Miley.

Let's

Naura and jane have same age = X

Miley + x = 7 + x + Bell

=> Miley - Bell = 7 + X - x = 7

=> Bell is younger than Miely by 7 years

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The temperature in 0 F on 20 days during the month of June

was as follows:

70 F, 76 F, 76 F, 74 F, 70 F, 70 F, 72 F, 74 F, 80 F,

74F,74F,78F,76F,78 F,76F,74F,78F,80F,76F

What is the mode of the temperature for the month of June?

76 and 78 is the highest occurrence in series..

There are 6 person A, B, C, D, E and F. C is the sister of F. B is the brother of E' husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group.

How is F related to E?

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 We 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. Clearly, F is the son of A..

Jame had $21 left after spending 30% of the money he took for shopping. How much money did he take along with him?

Let the money he took for shopping be m.

Money he spent = 30% of m

= 30/100 x m

= 3/10 m

Money left with him= m-3/10

m=(10m -3m)/10=7m/10

But money left with him= $21

Therefore 7m/10 =$21

m=$21 x 10/7

m =$30

Therefore, the money he took for shopping is $30.

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.

_ cb _ ca _ bacb _ ca _ bac _ d

The series is acbd / cadb / acbd / cadb / acbd. Thus, the pattern acbd / cadb is repeated.

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In 1992 Jahan was thrice as bell but in 1996 John was only twice as old as well was. How many years was there in 2000?

Let's

In 1992.

Jahan age's =x Bell age's=Y

when John was thrice as bell.

X = 3y .......( 1)

but after 4 years jhon was twice.

X + 4 = 2 (y+4)....... (2)

By substituting equations

Y = 4

but after 8 years.

In 2000 Bell was: 12

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The average temperature on Wednesday, Thursday and Friday was 25. The average temperature on Thursday, Friday and Saturday was 24. If the temperature on Wednesday was 30, what was the temperature on Wednesday?

Total temperature on Wednesday, Thursday and Friday was 25 Ã—3 = 75

Total temperature on Thursday, Friday and Saturday was 24 Ã—3 = 72

So, difference b/w the temperature on Wednesday and Saturday = 3

If Wednesday temperatures = 30 ,then Saturday temperature = 30 - 2 = 27

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