maths

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IBPS Clerk Anonymous

7 Comments

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monika 4 weeks ago

4   7  26  10  13  20  16  ?  ?

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monika 4 weeks ago

an automobile financier claims to be lending at simple interst,but he includes the interest every six months for calculating the principal. if he is changing an interest  of 10%,the effective rate of interest becomes-

a) 10%   b)10.25%      c)10.5%    d) none of thease

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GovJobAdda, BTM, Bangalore 4 weeks ago

This is the case of compound interest where interest is compounded half yearly.

So for 1st half rate of interest will be 5%

and for next half : 5% + 5% of 5%  i.e (5 + 0.25)% = 5.25%

so effective rate of interest for the year = (5 + 5.25)% = 10.25%

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monika 4 weeks ago

thanks a lot sir
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GovJobAdda, BTM, Bangalore Institute 4 weeks ago

there are 3 series.

4  _   _  10  _  _  16  _  _

     7   _  _   13  _   _ 19 _

          26  _   _ 20  _  _  14

so  19  ,  14

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monika 4 weeks ago

thanks sir
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monika 4 weeks ago

it is being given that(232+1) is completely divisible by a whole number.  which of the following number is completely divisible by this number-

1)   216+1          2)   216-1       3)  7*223        4)   296+1

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monika 4 weeks ago

A  train can travel 50% faster than a car.  both start at the same time at the point A and reach at point B  which was 60km  away from point A at the same time. on the way ,however the train lost  about 12.5  min  while stopping at the stations.  the speed of the car is

1)  100 km/h  2)110km/h    3) 120km/h  4)96km/h

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GovJobAdda, BTM, Bangalore 4 weeks ago

sab humse hi puch lena hai ??


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GovJobAdda, BTM, Bangalore Institute 4 weeks ago

Here  only option  (4) i.e   296 + 1  is greater than  (232+1)  so this will be the answer.

Alternately;

Let 232 = a   and  b =1

Use the formula : a2 - 1 = (a + 1)(a - 1)

for a  = 232 ;    (264 - 1) =  (232+1) (232-1)  so  (264 - 1) will be divisible by (232 + 1)  but it is not in the option.

Use formula :  (a3 + 1) = (a + 1)(a2 - a + 1)

So,  (296+1)  = (232+1)(264 - 232+1)   so (296+1) will be divisible by (232+1)

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GovJobAdda, BTM, Bangalore Institute 4 weeks ago

U can join this group and ask your queries. Other members will help u.

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