12 self study question with answer--14

Question 1

If tan = 3/4, then find the value of 

  4/9

  2/7

  1/3

  2/9

It's '2/9 '
As Tan x = 3/4
⇒ Sin x = 3/5
⇒ Cos x = 4/5
Putting these value 

Question 2

A certain sum of money doubles itself in 7 years, in how many years can it become 32 times of itself?

  28

  32

  35

  42

It's '35 '
If any sum of money becomes “n” times in “y” years, then it will become “n^x” in xy years. So, 7 × 5 = 35 years as 2⁵ = 32

Question 3

A and B can finish a piece of work in 10 and 15 days respectively. A starts working alone and B joins him after 5 days. In how many days will the total work be completed?

  8

  13

  9

  11

It's '8 '

A and B does 3 and 2 units of work in a day respectively. So in 5 days, A does 15 units of work.
Remaining work of 15 units will be done in  = 3 days.
So, total days = 5+3 = 8 days.

Question 4

Direction: Find the odd word /number/letter from the given alternatives.

Find the Odd one out

  VUTS

  PONM

  GHEF

  GFED

It's 'GHEF '
In all others, 2^nd letter is one letter behind the first one and fourth letter is one ahead of third letter.

Question 5

Which is different from others?

  Wheat

  Rice

  Mustard

  Marley

It's 'Rice '
Excluding Rice, which is a kharif crop, all others are Rabi crops.

Question 6

Direction: Find the odd word /number/letter from the given alternatives.

In a language JUNGLE is coded as UJNGEL, then how will BANDID be coded?

  BADNDI

  ABNDDI

  IDDNAB

  None of these

It's 'ABNDDI'

Question 7

Direction: Fill in the blanks with appropriate alternative.

Does anyone know who this gift is.......................?

  behind

  to

  for

  of

It's 'for '

Question 8

Have you put the chicken ________ the grill yet?

  at

  in

  against

  on

It's 'on '

Question 9

Can he help her ........... that heavy box?

  with

  behind

  ahead

  along

It's 'with '

Question 10

From which of the following the words justice in the form of social, economic and political justice in preamble has been taken

  French Revolution

  Russian Revolution

  German Revolution

  American Revolution

It's 'Russian Revolution '

Question 11

Mahatma-Life of Mohandas Karamchand Gandhi is written by

  Harish Mehta

  DG Tendulkar

  Pradeep Kumar

  GN Nayar

It's 'DG Tendulkar '

Question 12

In which of the following is the office of the Leader of the opposition

  Directive principles

  Rules of the house

  Constitution of India

  A separate Parliamentary Statute

It's 'A separate Parliamentary Statute '