20, 20, 17, 17, 14, 14, 11, ?, ?

What numbers should come next?

What numbers should come next?

This is a simple subtraction with repetition series.

It begins with 20, which is repeated, then 3 is subtracted, resulting in 17, which is repeated, and so on.

Rule = (1st no.), (1st no.), (1st no. - 3 = 2nd no.), (2nd no. repeat), (2nd no. - 3 = 3rd no.), (3rd no. repeat)...

Now in our case, (20), (20), (20 - 3 = 17), (17), (17 - 3 = 14), (14), (14 - 3 = 11), (11), (11 - 3 = 8), (8)...

So the answer is c = 11, 8..

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

Choose the appropriate option (2), 5, (12), 25, 41, 61

Choose the appropriate option (2), 5, (12), 25, 41, 61

The correct sequence is + 4, + 8, + 12, + 16, + 20.

Clearly, 2 is wrong and must be replaced by (5 - 1) i.e. 4.

Also, 12 is wrong and should be replaced by (5 + 8) i.e. 13..

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

aab _ ab _ cabcca _ bcab _ c

The series is aa / bcab / bcab / ccaa / bcab / bc.

Thus, the pattern ccaa followed by bcab repeated twice, makes up the series.

The ratio of Two Sisters Alice and Betty is 3/2. However if the age of Alice before 15 years and that of Betty after 15 years than the original ratio is reserved. What is the age of Betty?

Let

Alice age's= A and Betty Age's=B

Given that

A / b = 3 / 2

2 A= 3 B

2A-3B=0.......(1)

And also given that

(A -15 )/ (B+ 15 )= 2 / 3

3 A- 45 =2B-30

3A - 2B = 75..... (2)

By solving both equation

B=30

So Batty is 30 years old

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Look at this series: 80, 10, 70, 15, 60, . . .

What number should come next?

What number should come next?

This is an alternating addition and subtraction series.

In the first pattern, 10 is subtracted from each number to arrive at the next.

In the second, 5 is added to each number to arrive at the next.

First pattern (80) (80 - 10 = 70) (70 - 10 = 60) (60 - 10 = 50)

Second pattern (10) (10 + 5 = 15) (15 + 5 = 20)

So the answer is 20..

A + B means a is the son of B.

A- B means A is the waife of B.

A x B means A is the brother of B.

A Ã· B means A is the mother of B.

A= B means A is the sister of B.

What does P + R - Q means?

P + R -Qmeans, p is the son of a R who is the wife of Q i.e. Q is the father of P.

Hence, the answer is (a).

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In following questions, three sequence of alphabets/numerals are provided which correspond to each other in some way. Find out alphabets/numerals that come in the blank places.Choose the correct option

C B _ _ D _ B A B C C B _ _ 1 2 4 3 _ _ ? ? ? ? a _ a b _ c _ b _ _ _ _

Comparing position of capital letters, numbers and small letters, as we find:

a corresponds to C and 1 corresponds to a. So a and 1 corresponds to C.

b corresponds to A and 2 corresponds to b. So b and 2 corresponds to A.

Also, 4 corresponds to D.

So the remaining number i.e. 3 corresponds to B, So BCCB corresponds to 3, 1, 1, 3.

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A + B means A is the son of B;

A - B means A is the wife of B;

A x B means A is the brother of B;

A Ã· B means A is the mother of B; and

A = B means A is the sister of B.

What does P = R Ã· Q mean?

Option (A)

P = R Ã· Q means P is the sister of R who is the mother of Q i.e. P is the aunt of Q.

So, the answer is (a).