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..

The average of 6 quantities is 4. The average of 3 them is 3. What is the average of the remaining three numbers?

The average of 6 quantities is 4.

Therefore ,the sum of the 6 quantities is 6 Ã— 4 = 24.

The average of three of these 3 quantities is 3.

Therefore, the sum of these three quantities = 3 Ã— 3 = 9

The sum of the remaining three quantities = 24 - 9 = 15 .

Average of these three quantities = 15 / 3 = 5.

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A 5000 metre long train crosses a platform in 25 seconds while it crosses a single pole in 10 seconds. What is the length of the platform?

Speed=500/10

Speed=50m

Let the length of platform be x metres

Then,(x+500)/25=50

X+500=50*25

X+500=1250

X=1250-500

X=750

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In following alphabet series , one term missing as shown by question mark . Choose missing term from options.

AZ, GT, MN, ?, YB

The first letter of each term is moved six steps forward while the second letter is moved six steps backward to obtain the corresponding letter of the next term..

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

ab _ bc _ c _ ba _ c

The series is abc / bca / cab / abc. Thus, the letters are written in a cyclic order.

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In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. dfe, jih, mln, ?, vut

There is a gap of three letters between the first letter of each term and the last letter of the next term..

If Eli says, Liys' father George is the only son of my father in law Emily, then how is lsla,who is the sister of Lily , related to Emily?

Eli father in law is : Emily

Emily is the father of George where, Lily is the George daughter.

So Lily is the granddaughter of Eli father in law.

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