A+B means A is daughter of B

A*B means A i the son of B and

A-B means A is wife of B

If Z*T -S*U+P, what U to Z.

Z*T-S*U means Z is the son of T who is the wife of s who is the son of U i.e Z is the son of S who is the son of U i.e Z is the grandson of U or U is the grandmother or grandfather of z. form the choice( 2) is true..

Find the wrong number in the series:

7, 28, 63, 124, 215, 342, 511

7, 28, 63, 124, 215, 342, 511

Clearly, the correct sequence is

(23 - 1), (33 - 1), (43 - 1), (53 - 1), (63 - 1), (73 - 1), (83 - 1).

So 28 is wrong and should be replaced by (33 - 1) i.e. 26.

Hence, the answer is (B)..

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..

In following number series, two terms have been put within brackets. Choose the appropriate option

Choose the appropriate option 4, 7, (9), 10, 13, 15, (16), 19

Choose the appropriate option 4, 7, (9), 10, 13, 15, (16), 19

The correct sequence is is + 3, + 2, + 1, + 3, + 2, + 1, + 3.

Clearly, both the terms 9 and 16 are correct..

Look at this series: 36, 34, 30, 28, 24, . . .

What number should come next?

What number should come next?

This is an alternating number subtraction series.

First, 2 is subtracted, then 4, then 2, and so on.

Rule = (first number - 2), (second number - 4), (third number - 2), (fourth number - 4)....

Now The series is 36, 34, 30, 28, 24...

(36 - 2 = 34), (34 - 4 = 30), (30 - 2 = 28), (28 - 4 = 24), (24 - 2 = 22)...

So the answer is 22..

In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?

Let R, G and B represent the number of balls in red, green and blue boxes respectively.

Then,

R + G + B = 108 ...(i),

G + R = 2B ...(ii)

B = 2R ...(iii)

From (ii) and (iii), we have G + R = 2x 2R = 4R or G = 3R.

Putting G = 3R and B = 2R in (i), we get:

R + 3R + 2R = 108; 6R = 108 ;R = 18.

Therefore Number of balls in green box = G = 3R = (3 x 18) = 54.

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In following number series, either one term is missing or is incorrect.

Choose correct answer from options 2, 3, 5, 8, 13, 34

Choose correct answer from options 2, 3, 5, 8, 13, 34

Clearly, each term of the series is the sum of the preceding two terms.

Now 8 + 13 = 21 and 13 + 21 = 34.

So, the term 21 is missing..

The sum of age of Tony and Teddy equals thrice their mother's age. Tony is 2 years younger than Teddy. If the age of mother is 42, find the age of Teddy?

Lets

Teddy = X

Tony = X - 2

given conditions

3 (Tony + Teddy) = mother

3 (x - 2 + x )= 42

6 x- 6 = 42

6 x = 48

X=8

Tony = 6 and Teddy = 8

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A + B means A is the father of B.

A -B means A is the wife of B.

A Ã—B means A is the brother of B.

A Ã·B means A is the daughter of B.

If P Ã·R + S + Q , which of the following is true?

PÃ·R+S+Q means P is the daughter of R who is the father of S who is the father of Q i.e.P is the sister of the father (S) of Q i.e. P is the aunt of Q..